Nokia 3120 Switch Problem

Here is a picture guide to overcome the damage to the Nokia 3120. You can browse the set of connected components by looking at the schematic diagram. With these guidelines, we can determine which components will be jumpers.

Nokia Schematic Diagram

Hello friends. In the mobile phone repair, often we are faced with the problem of termination of the path on the PCB board, in addition, in checking electrical voltage and current, of course we need a schematic diagram to facilitate our work.

Here are some schematic diagrams Nokia that you can download, hopefully useful!

Nokia 1100 - 2300 schematic diagram
Nokia 1110 - 1600 schematic diagram
Nokia 1200 schematic diagram
Nokia 1255 schematic diagram
Nokia 1610 - 1611 schematic diagram
Nokia 1650 schematic diagram
Nokia 1680c schematic diagram
Nokia 2100 schematic diagram
Nokia 2112 schematic diagram
Nokia 2116 schematic diagram
Nokia 2118 schematic diagram
Nokia 2125 schematic diagram
Nokia 2220 schematic diagram
Nokia 2255 schematic diagram
Nokia 2280 schematic diagram
Nokia 2310 schematic diagram
Nokia 2330 - 2320 - 2323c schematic diagram
Nokia 2355 schematic diagram
Nokia 2600c schematic diagram
Nokia 2600 schematic diagram
Nokia 2610 schematic diagram
Nokia 2626 schematic diagram
Nokia 2630 schematic diagram
Nokia 2650 schematic diagram
Nokia 2660 - 2760 schematic diagram
Nokia 2680s schematic diagram
Nokia 2700c schematic diagram
Wait another schematic :)

Sony Ericsson T630 Joystick

Mobile is using the joystick, are very vulnerable to damage. Among the many mobile phones use the joystick is the Sony Ericsson T630 mobile phone.

Usually the joystick is often damaged when used for playing games, browsing the Internet, and various other usage using the joystick as the primary navigator.

In this section, Phone Repairing will share ways to make jumpers on the joystick Sony Ericsson T630. This is done if the point the joystick in the PCB board has been damaged.

For friends in need, please download the following image:

Nokia 1200, 1208, 1650 Plugin Problem

Mobile Nokia 1200, Nokia 1208, and the Nokia 1650 is a phone that has a plugin that soldered to the PCB board. Damage that often occurs in the Nokia plugin is broken jack for charging. This may be because of its small size.

When this happens, we might be a little difficult, both in the process of opening the plugin, as well as the installation process. The difficulty occurs because the position of the plugin with the keypad light is very close, so if not careful, the heating process, the keypad lights will burn.

In addition to the charging problem, the problem can also arise in the USB port. The problem that often occurs is disconnected lines. When this happens, you can make jumpers from the point of the plugin to the component. Here is a picture guide to make the technique.

Nokia 2680s Hang

Here is a guide to repair the damage to Nokia 2680s. This technique is used to overcome hangs on Nokia 2680s. Please download the picture.

Good luck!

All Nokia BB5 Solutions

Here is a guide to repairing Nokia BB5. The following guidelines are packaged in a convenient form of software in use. With this guide, you will more easily in repairing damage to the mobile phone Nokia BB5. Please download the following link :

All Nokia BB5 Repair Guide

Furthermore, the following picture is a guide to repairing damage the MMC the Nokia 5300. Please save the image as a guide for you if one day find a problem with the Nokia 5300 MMC. Hopefully useful.

Nokia 5130 Keypad Problem

For those of you who have problems with the Nokia 5130 keypad, we offer the following guidelines to overcome the keypad problem.
This step is an alternative step, step better is to change the keypad IC. However, if you want to do jumpers, please follow the guidelines in the following figures :

Nokia 1202 - 1203 LCD Repair

Hello friends, after a long time I did not post a trick jumpers, now I'm back to share a trick jumpers that may be useful for you. Jumper trick this time is to repair the broken lines on the LCD Nokia 1202 and Nokia 1203.
Please save this images as your reference material if someday you find a problem on LCD Nokia 1202 and Nokia 1203. Hopefully useful.

Nokia 1100 or 2300 Schematic Diagram

Some time ago, we received several messages asking to upload the pictures jumpers techniques as never done before. Currently, we are collecting back collection drawings. While waiting for uploaded images, we provide schematic or a circuit diagram for the mobile phone Nokia 1100 or 2300. Schematic Nokia 1100 or 2300 is pretty much requested and sought by the visitor.
By having schematic diagram, it is easier to make improvements, especially on the damage caused by the broken lines on the PCB board.
Well, for those of you who need a schematic diagram of the Nokia 1100 or Nokia 2300, please download the following link.

Nokia 1100/2300 schematic diagram

Analysis of Short Flows in Nokia BB5 (part 2)

TAHVO Elimination
Disconnect the L2302, with these components removed, then the Vcore will be lost. Then check again, if the condition still the same? If so, it means there is no problem with Vcore for the RAP. When the heat was back to normal, then there are certain problems in RAPGSM (microprocessor).
Pull the L2301 and L2306, with these components removed, the input TAHVO from Vbatt will be lost. This led to a series of charging does not work. Check back, if the condition still the same? If so, it means there is no problem at TAHVO. If the heat back to normal, then it means there is a problem in TAHVO.
PA (Power Amplyfier) elimination
Pull Z7520, by depriving these components, Vbatt Voltage to the PA will be lost. Check back, if the current consumption to be normal, then there is a problem in PA.
RF IC (AHNE) elimination
Pull the L7502, with these components removed, the Vbatt voltage to the RF will be lost. If the current consumption to be normal, then there is a problem in the RF. If the flow remains high, then the problem is not found in RF. Replace the L7502.
Bluetooth IC elimination
Pull the L6077, with these components removed, the Vbatt voltage to the bluetooth IC will be lost. If the current consumption to be normal, then there is a problem in the bluetooth IC.
Camera IC and Regulator elimination
Pull L3303, if the flow becomes normal, then there is a problem in the camera or camera ICs. If the flow is still high, pull the L3304, if the flow becomes normal, then there is a problem in the camera regulator (N3300).
For the DSP on RAPGSM that obtain VIO voltage, the way to eliminate by pull RAPGSM. Then look the current reaction on Power Supply or feel if the RETU still hot? If it is back to normal, it means there is a problem in RAPGSM. If the RETU still hot, or power supply current is still high, it means the problem is not found in RAPGSM.
There are two possible short on RAPGSM, from foots of the RAPGSM or from RAPGSM module itself. If the short occurs on its feets, reball the IC. But if after reball still same, change the RAPGSM.
There are three short categories on mobile phones, namely :

1. Short when the battery installed
2. Short after pressing on/off switch
3. Short when make a call

To overcome the condition number one, check and eliminate the components that obtain the voltage directly from Vbatt like PA, RETU, TAHVO, RF, etc.
To overcome the condition number two is more difficult. Check and eliminate the components that obtain the voltage from regulator like camera regulator, led regulator, etc.
The condition number three, the damage generally occurs in PA, because PA work when make a call or receiving a call.

Analysis of Short Flows in Nokia BB5

This analysis is applied to Nokia BB5 mobile phones that use RF (AHNE), using the processor RAPGSM v1.1, not RAP3G.
RAPGSM v1.1 is included in the CMOS processor (MOSFET) which is a series combination of Field Effect Transistor (FET), Vdd (drain) as a positive voltage, Vss (source) as a negative.
RAPGSM need two types of voltage, namely :

1. Microprocessor Voltage, Vcore = 1,4 V
2. Data Signal Processor Voltage, VIO = 1,8 V

In RAPGSM have a 19 foot VddCore obtain positive voltage 1,4 V (drain) of the TAHVO, and 19 feet VssCore negative voltage (source) to ground, and 11 feet that obtain VddIO voltage 1,8 V.
Approximately 50 feet from the input voltage (Vdd/Vss) for the RAP, the common short-circuit on its feet. Therefore, most likely caused by this RAPGSM. However, if we want to do a more precise measurement, it is very difficult if only done by injecting a voltage or a heat feeling.
Why? because in RAPGSM IC's module, on input Vdd/Vss, there is a protection diode works as switching when short. So, when RAP short, not hot. However, the heat occurs at a regulator, which is RETU or TAHVO.
Therefore, we could either make a conclusion. So, if RETU heat, it doesn't mean that experienced short RETU.
Therefore, the proper way to do an analysis is to perform elimination. Elimination is to decide the voltage on one of the suspected components, and then compare it back to the power supply.
To be continued ....

Upgrade Nokia Mobile Phones Firmware Via USB

This session will discuss how to update Nokia phone firmware without using the box. The trick is to use the data through the USB cable. Before you start, make sure you have met these requirements :
To install and run Nokia Software Updater application :

• PC with 1 Ghz or higher pentium-compatible processor
• At least 256 MB of RAM (memory)
• Windows 2000 (SP4 or later) or Windows XP (SP1 or SP2)
• Administrations rights on the PC while installing
• Internet connection

To connect your phone to a PC :

• Fully charged, compatible Nokia phone
• Compatible Nokia USB connection cable
• Compatible USB port on your PC

Next step is back up data, personal data such as contacts, photos and messages stored in phone memory will be deleted during phone software update. It is strongly recommended that you back up this data to your memory card before updating your phone software.
To back up data to your memory card, follow this steps :

• Select Tools - memory (from the main menu)
• Select Options - Back up phone memory

To restore info to phone memory :

• Select Tools - memory (from the main menu)
• Select Options - Restore from card

After everything is ready, do the software update and follow the next steps. For the record, if you file to do so, mobile phones will be die. But, don't worry, you can fix it by using the box. Good luck.

Upgrade Nokia 3110c to Nokia 3500c

Nokia is a brand of mobile phones is very popular in the world. In the market, mobile phones Nokia has been circulating in various types. One of them is Nokia 3110c.
Damage that often occurs in Nokia 3110c is blinking and restart (at least that's what i often find). Maybe for people who have had experience in the world of mobile phone repair, damage symptoms of restart and blinking very recognizable, ie mobile phone screen flashes white.
To overcome this damage, we can do reflash. Well, at the time, we are not going to talk about how to repair damage to the Nokia 3110c mobile phone, but that we will discuss here is how to upgrade firmware from Nokia 3110c to the Nokia 3500c.
Ok, to do so, let's follow the following steps :

1. For security, back up first RPL and PM before upgrade.
2. Flash your Nokia 3110c using Nokia 3500c firmware
3. Write Pm
4. Unlock
5. Reset full factory

After completion, the themes, screensavers, color schemes and ringtone will be the same as Nokia 3500c. One more thing that's most important, the quality of the Nokia 3110c's camera will be equal in quality to the camera Nokia 3500c which has a resolution of 2.0 megapixels.
The following are log information from the upload process is never done.

Download log file

Good luck!

Nokia 2100 and Nokia 3610 Contact Service Problem

Writing this time will discuss about the problems that occurs in Nokia 2100 and Nokia 3610. This time, the problem will be discussed is the damage to contact the service.

The background of this issue raised in the blog is because a lot of questions coming to us to overcome these problems. Among the questions coming to us, most damage occurs when they will replace the PPM files, but after the PPM files replacement process is complete, a new problem comes, the contact service.

This is a lot happening on the mobile phone Nokia 2100 and Nokia 3610. The cause of this damage is the original IMEI to the IMEI plain out of sync.

To overcome this damage, we can use the flasher tool commonly used by mobile technicians, the UFS Tornado. The first step, after you connect the phone with UFS Tornado, please see the information about the mobile phone by clicking the info menu on UFS Tornado interface.

Look carefully at the Cobba, what number is written? if the writing is -31, meaning the problem is not found in IC Cobba, but if the writing is -700, meaning Cobba IC is damaged. All right, we will discuss today are issues that are not on the Cobba IC.

Nokia 2100

Erase flash :

• Start 00200000 end 003FFFFF and
• Start 003F0000 end 003FFFFF

Nokia 3610

Erase flash :

• Start 00200000 end 005FFFFF and
• Start 005E0000 end 005FFFFF

Furthermore, you do flashing process as usual in the MCU and PPM. When finished, rebuild IMEI, adjust the IMEI number with the original, then do unlock. Good luck.

Damage around the Nokia E 70 (part 2)

We continue the discussion of the damage that often occurs on the Nokia E70.

T7502 (Tx Coupler)
This component is often called the balance unbalance. This component serves to create a balance signal to unbalance. This component works on 1800 Mhz frequency. If components are damaged, will cause the RF Tx signal at a frequency of 1800 Mhz impaired. This situation will create a mobile phone only works on 900 MHz frequencies, but when transferred to the frequency 1800 MHz, mobile problematic. This resulted in signal to arise drowned.

Z7504 (Tx Filter 900 MHz)
This component serves to filter the RF Tx signal to be emitted by the Power Amplifier. This component also change the RF signal to be balance unbalance. If this component is damaged, the symptoms that arise as damage to the T7502, but the phone problem at 900 MHz.

N2200 IC Power RETU
These components not only function as a supplier of electricity, but these components also regulate the function of audio, data SIM Card, vibrators, and much more. If this component is damaged, the symptoms that often arises is the mobile phone becomes dead, the audio problem, vibrators, and others. Please note that almost all IC contained in this mobile phone to take electricity from retu.

Damage around the Nokia E 70 (part 1)

In this section, Phone Repairing will discuss about the damage that often occurs in the Nokia E 70 mobile phone. The first part will be discussed is the Signal. The main components of this section is Z7503 (antenna switch), N7502, X7501 (antenna connector), X7502 (antenna connector), T7502 (Tx coupler), Z7504 (Tx filter 900 Mhz), N2200 (IC Power retu), B2200 (crystal osc 32 Khz).

Z7503 (Antenna Switch)
Antenna Switch is a component that can be easily damaged, very vulnerable if you have a strong impact. This component serves as a switch for the RX signal to the TX signal so that only one antenna is required to accommodate the needs of both the RX series (radio receiver) and TX (radio transmitter). If problematic, can cause no signal receiver or transmitter. In addition, can also cause the RX signal becomes weak, it is difficult to make calls.

N7502
Power Amplifier or sometimes called final amplifier is a component that serves to strengthen the signal is modulated TxRF, so it has enough power to reach the nearest base stations.

These components are relatively often damaged. In the event of damage, mobile transmitter system would be disrupted. Damage to these components will result in mobile phones can not make calls, not to call, no signal, wasteful batteries and others.

X7501 (Antenna Connector)
This connector is often problematic when the mobile phone with a hard knock. This component serves to connect the antenna to the PCB. If the connector is dirty, or if the antenna is not connected to this connector, will result in a weak signal, it is difficult to call and difficult to accept the call.
In the process of improvement, to ensure that the antenna is connected properly to the connector, we can use the 8 cm long wire that directly soldered to the antenna connector. If the signal improves, it is certain that there is damage in this section.

to be continued.....

Samsung Mobile Phone Secret Codes

The next mobile code which we will discuss is the code for Samsung mobile phone. Some of the following code is useful to display the software version, testing ringtone, reset phone and so on. Please refer to the following code:

1. *#06# = code to show IMEI number
2. *#9999# or *#9998*9999# = code to show the software version
3. *#9998*8888# = code to show hardware version
4. *#9998*76# = code to show production number
5. *#9998*288# or *#0288# = code to check battery status
6. *#0246# or *#0377# = code to check memory status
7. *#8999*638# = code to show network information
8. *#9998*523# or *#0523# = code to set screen contrast
9. *#8999*5646# = code to change operator logo
10. *#0289# = code to test ringtone
11. *#0842# = test vibrate
12. *#0746# = code to show SIM Card information
13. *2767*2878# = lock the phone
14. *2767*3855# = code to reset memory, don't forget to remove SIM Card
15. *#9998*5282# = Java Menu
16. *#9998*4357# = Help Menu

That's some code that can be used in Samsung mobile phones, may be useful.

Motorola Secret Codes

The next secret code is a secret code for Motorola mobile phone. Immediately, we refer to the following code:

1. *#303# Ok = secret code to change phone language to English
2. *#300# Ok = secret code to show mobile phone software version
3. *#301# Ok = secret code to test keypad
4. 1234 Ok = mobile phone default code
5. 19980722 Ok = master unlock code for phone and SIM lock
6. *#0000# Ok = restore settings
7. *#402# Ok = contrast

Good luck.

Sony Ericsson Secret Codes

After the first we know the secret codes for Nokia mobile phones, now we'll find out some secret code for Sony Ericsson mobile phones.
The following codes are some useful secret codes for you to manage Sony Ericsson mobile phones. Please read:

1. *#06# is code to show IMEI Number. This code is same for all Mobile Phones.
2. *#0000# is code to reset mobile phones' language to English
3. >*<<*<* is code to show service menu and software version. Through this code, you can check the function of several Sony Ericsson Mobile Phones component like Microphone, Buzzer, Speaker, etc.
4. <**< is code to lock SIM Card. By using this code, your SIM Card cannot be changed. If you want to reset your mobile phones, you must unlock your mobile phone using flasher or unlock code.
5. *<<* is code to lock provider service
6. **04*0000*0000*0000# is code to access your mobile phone without Sim Card.

That's some code on Sony Ericsson mobile phones, may be useful!

Secret Codes for Nokia Mobile Phones

In this section, Phone Repairing will provide some free unlocking codes for Nokia mobile phones. Free codes that will be discussed below consists of a secret code to unlock the phones, to know the secret codes IMEI number, secret code to view the software version, secret codes to view private numbers and more.
Let us discuss one by one :

1. Code to see the IMEI number is : press the button *#06#
2. Code to view the software version, manufacture date and type of software compression : press *#0000# or if not work try : *#9999#
3. Code to view call waiting status : press *#43#
4. Code to view private number that contact your mobile phone : press *#30#
5. Code to change the operator logo (especially for mobile phones Nokia 3310 and 3330) : press *#67705646#
6. Code to show simlock status : press *#746025625#
7. Code to set phone settings to factory settings : press *#7780#
8. Code to show mobile phones serial number, production date, purchase date, recent repair date : press *#92702689#
9. Code to show security code : press *#2640#
10. Code to show bluetooth IP address : press *#2820#
11. Code to activate EFR with the best sound quality : press *#3370#
12. Code to activate EFR with lowest sound quality : press *#4720#

Thus some secret code for Nokia mobile phones, but among these codes, some codes are only valid for certain types only. Thanks.

Nokia 3650 Software Problems

Nokia 3650, Nokia 3660, Nokia 6600 and Nokia 7650 is the type of first-generation Nokia mobile phones that use Symbian operating system. Symbian operating system is very vulnerable to viruses, therefore, on mobile phones using Symbian operating system common to the software problems caused by viral interference.

Cases that we discuss this is the case of damage to the software the Nokia 3650. Symptoms that occur are mobile phones can not playing music. When the music player application is activated, the application can open but can not play music.

To overcome this, you must format the memory card and mobile phone. As for how to format the phone can be done in two ways, first you can use a box like UFS Tornado Flasher, then do the format on the user area. The second step is to perform manual format by pressing the code *#7370# ( mobile phone switched on by using the SIM Card ).

After you format the phone and memory card, reinstall the music player application and all will return to normal.

Nokia 6610 Power Switch Problem

Phone Repairing this time again will share experiences in repairing the damage Power Switch on the Nokia 6610 mobile phone.
Symptoms of damage to the Nokia 6610 mobile phone this time are: Mobile to die, but when connected to the transformer charger, can charge mobile phone battery.
This indicates that the mobile machine is still working, but the phone can not be turned on because of any damage or problems on the power switch. The first step I did was make a visual inspection. This is done to ensure that no chip is missing either due to collision and so on. Having ascertained that no chip is lost or separated, then the next analysis was to examine whether the PCB track is broken or not. In this examination step, I do not find a damaged PCB track, but instead there is the resistance value of resistor which does not match that should be. R306 chip is as shown in the following figure:

To repair this damage, we can replace the resistor with the same value as shown in the diagram scheme. However, if we do not have a resistor, we can handle it by doing jumpers from switch on / off straight to the point of resistors that is connected to UEM IC. The picture as shown below:

Pm Files for Nokia DCT-4

Contact service can occur for several reasons. One reason mobile experience Contact Service is due to the destruction of pm files on mobile.
Here I share some pm files for mobile phones Nokia DCT-4 which consists of the Nokia 1110, Nokia 1112, Nokia 1600, Nokia 1650, Nokia 2310, Nokia 2610, etc.
Before writing this, I've also written about how to overcome the damage Contact Service on the Nokia 5510 mobile phone. In such cases, Contact Service actually is caused by damage to the CCONT IC.
Further back, I also have written about ways to overcome the damage Contact Service on mobile phones Nokia DCT-3. Okay, please download it pm file for Nokia mobile phones that I mentioned above, may be helpful.

Click to download

Nokia N73 Handsfree Problem

Some time ago, there was a problem that very rarely happens. Actually, if this can be called stupid. Why do I say stupid? Here's the story:

Mobile that I use the Nokia N73. When I came home from a relative's house, then I put the phone on the table. Without my knowledge, my brother took my Nokia N73. He intended to listen to music through a hands-free but without him knowing it, he took the hands-free for Sony Ericsson W395 mobile phones.

When handsfree Sony Ericsson W395 is we put on the Nokia N73, is entered. But because the system does not detect the same, finally on my phone there is always a warning enhancement not supported.

Because I do not know the chronology of the beginning, I thought it was caused by a virus that damage the operating system. I think that because I often browse and download using the phone.

When I try to restore the phone settings to factory settings, it turns out that the warning is still there. Finally, after my in-depth analysis, I have concluded that to eliminate these warnings, we must install a suitable handsfree. Finally, after I install a suitable handsfree, especially the original, mobile phones back to normal.

Nokia 2100 Signal Drop

After a long time not writing, this time I want to share about how to improve the signal problem on the Nokia 2100 mobile phone.

I found the problem this time is as follows:

When I first turned on, cell phone signal can be captured but a few seconds later the signal was lost immediately. I tried to find signal manually from setting menu, the result can detect any mobile cellular networks there. I thus conclude that the RF processor is not a problem.

Next I checked the Power Amplyfier. I pull the IC Power Amplyfier then I replace it with new. The result was still missing signal abruptly.

After I did some earlier, I finally have the conclusion that the damage occurred on the passive components in the vicinity of IC Power Amplyfier. After I check one by one, finally I found a damaged passive components, namely the capacitor C 760.

Location of these components can be seen in the picture below. After I replace these components, mobile phone back to normal.

Nokia 8310 Mic Problem

The information we give this time is the information about the Nokia 8310. On the Nokia 8310 mobile phone is often a problem occurs in Microphone.
Problems with microphone can be caused by a broken line or a broken microphone. However, these days we have received 3 pieces Nokia 8310 mobile phone. Complaint is when to call, our voice was not heard by the other person.
At first we thought that the microphone is broken, but after we checked, still a good microphone. The next step we check the microphone channels, the result no broken lines.
It turned out after our study, the damage caused by installing the bolts on the mobile cracked bone, so that when we tighten the bolts, the PCB board is not attached properly due to loose bolts. This causes the connection between the microphone with the PCB board to be not perfect.
To fix this, replace bone or you can provide the lead on the microphone on the PCB. This is a simple step but provides a real solution.

Nokia 3110c MMC Problem

Are you users of the Nokia 3110c? The problems often encountered in mobile Nokia 3110c is the phone can not read MMC, or phone restart when installed MMC.
This can be overcome such as by flashing, but if you do not have Flasher box, you can use the following as alternative steps:

1. Remove SIM Card


2. Remove the MMC and Format MMC on your computer


3. Turn on the phone without SIM Card and MMC


4. Return the phone settings to factory settings


5. Enter the MMC, and then format MMC by phone, then reset the phone


6. Then insert the SIM card, then reset the phone


7. Mobile return to normal

Contact Service Nokia 5510

Some time ago, we found a case of Contact Service on the Nokia 5510 mobile phone. Usually at this mobile group, contact service damage can be detected from the difference in the IMEI number is visible at the interface DCTx Tools. To fix it we can do to rebuild IMEI reappropriate the IMEI number.
However, after we check the IMEI number was not a problem (on the screen shows the same IMEI number). Next we tried to write back pm and the results remained the same.
After going through several steps of analysis, we finally conclude that the damage to the IC Ccont. Next we replace IC Ccont and mobile phone were recovered. Hopefully this can be an additional knowledge for us in cell phone repair.

Nokia 3100 Signal Problems Repair

The signal is very important for a wireless communication device because without a good signal then the wireless communications will be hampered. In the cell phone, receiving signals from operators regulated by an IC called RF Processor.
Cases we adopted in this section is the problem of signal reception on the Nokia 3100 mobile phone. The problem is as follows: mobile phones can receive the signal but the signals up and down and sometimes disappear.
This problem comes from IC RF Processor. However, after we have done tests, RF Processor IC is not damaged. The problem is the connection between the IC RF Processor with PCB board is not perfect (lead fracture) so the reception signal becomes unstable.
To overcome this problem, we only heated Processor RF ICs using solder fumes (blower), it aims to glue the back of tin that have cracked it. After we warm up, receiving the Nokia 3100 mobile phone signal back to normal.
Basically, a system that works on a mobile phone is the same. Therefore, if we find the same case as mentioned above, we can do the same handling steps.

Repairing Nokia 3120 Restart

Cases that we host this time is the damage that occurs in the Nokia 3120. The damage is when we are pressing one button keypad, mobile phone screen becomes blank and beeps sound. The next phone restart itself.
At first we thought that the damage caused by software problems, but once we flash was the result remains the same. When we did further analysis, we finally conclude that damage to the CPU.
After we did the replacement of the CPU, it returned to normal mobile phone. Such information from us for now, may be useful.

How to Repair Phone Restricted Problem

Some time ago we received a question about how to overcome the damage Phone Restricted. Previously we have never found this kind of damage, but some time ago we discovered the damage to the phone Phone Restricted brands Nokia 3100 model.
In the cases we found, we tried to do the examination by using UFS Tornado. Mobile can be connected to either, but when viewed on the info, mobile IMEI number is not detected and only in the form of a question mark.
We tried to write UEM, but the phone still error. In theory, the IMEI number stored in the EEPROM and on mobile phones Nokia DCT-4, EEPROM contained in UEM IC. Therefore, to repair the damage we change UEM IC and recharge IMEI number. Finally phone back to normal functioning. Hopefully useful.

Sony Ericsson T230 Repair Guide

In this section, we will share the ways to repair Sony Ericsson mobile phone models.
Sony Ericsson is a well-known brand of mobile phone users for Sony Ericsson presents the actual models and stylish. However, the outer side is also equipped with advanced features in it.
Among the Sony Ericsson mobile phones on the market is the T230 model. T230 is an early generation mobile color of the brand Sony Ericsson. In the following files you can find some guidelines for repairing damage to the Sony Ericsson T230.
If you have any problems with the Sony Ericsson T230, please download the following files, and if you want to know and understand the systems that work on a mobile phone, you can purchase the electronic books are here. Please click on the menu above.

T230 Repair Guide

Nokia SIM Card Repair Guide

Phone damage can occur in any part, including the SIM reader. SIM is a chip that contains the identity of the owner of mobile phone numbers. If the phone can not read the SIM card, the phone can not be used to communicate.
In a phone there is an IC that serves as a driver or booster SIM card. If the phone can not read the SIM card, usually the damage occurred in the IC. To fix it, of course, we have to replace the IC with a new one.
IC is a different location for each mobile phone, to find out you can see on the diagram scheme which can be downloaded here. If not available, you may submit a request and we will give it to you.
In addition to damage ICs, causing mobile phone can not read the SIM card can be due to a broken track on the circuit SIM card reader. To overcome this you can connect the broken line with scheme guidelines chart. In the following files you can find some guidelines to jumpers on the break point from some Nokia mobile phone.
For those of you who are interested please download the file here:

SIM card repair guide

N-Gage Repair Guide

For users Nokia N-Gage QD, here's a file that contains a collection of techniques to repair Nokia N-Gage. In this file you can find a few tricks including how to repair the damage that mobile phones can not read the memory card, can not fill the battery and many more.
Nokia N-Gage QD is a Symbian based mobile phones that can be installed from third-party applications. However, this phone is very vulnerable to viruses, therefore, for you mobile users N-Gage QD should install anti-virus on the system in order to prevent damage caused by viruses.
Well, for those of you who need the file please download the following link:

Nokia N-Gage Repair Guide

Nokia Switch on/off Repair Guide

In this session, we will share a file that contains a collection of tricks how to repair damage to switch on / off.
Damage to switch on / off may cause the phone can not be turned on, because the switch on / off function to generate the sleeping mobile. In fact when battery mounted on the mobile phone, mobile phone has been switched on but in a state of sleep, and to generate, we must press the switch on / off.
Therefore, the function switches on / off is very important because if the switch on / off damaged the phone can not work as usual.
Damage to the switch on / off not only due to a broken switch, but the damage can be caused by a track switch on / off the break.
The following file contains a set of guidelines to improve the image damage switch on / off of some types of nokia mobile phones. In this file you will find a guide to overcome the damage of broken lines. Good luck.

Nokia Switch on/off Repair Guide

Charging Problems Guide

In part this time, I will share a guide to improve the battery charging problem. In the following files you can find many practical guidelines to overcome the damage to the battery charging from several types of mobile phones Nokia.
It's not too many types are available in the file, but some types of mobile phones in the file is actually a type mobile phones used by many people or in other words the type of mobile phone's favorite people.
There are many other guides later on I will share with you free, but the connection with my online time is limited because of busyness, I beg you to be patient and keep visiting this humble blog.
Please download the following file:

Charging Problems Guide

LED Problems

In this section Phone Repairing provides a guide to repair the damage LED (light emitting diode). The damage of LED will not be indeed a big influence on the cellular phone system, but the damage led to interfere with our comfort in using cell phones.
Interference was when we would send a message and so on. Disorders will be felt when the lamp is damaged lights illuminating the LCD.
Here are some tricks to overcome the damage the LED lights. Please download the following link:

Led Problems Guide Download

Battery Problems

In normal circumstances and use, cell phone battery average is used to hold two and even three days. However, if in normal use and battery condition certainly good, but cell phone battery runs out fast, it means that there is a problem in the transmitter.
Why in the transmitter? Because this section (IC PA) took power from the battery directly and not through the IC Power Supply first, since this section requires a great power. Basically, when the battery is attached to cell phones, although cell phone was not turned on, he actually has an active but still "asleep" and to wake it is by pressing the on / off.
In the case above, wasteful battery condition can be caused by IC PA (Power Amplifier) that is damaged. IC continuously flows from the battery sucking causing rapid cell phone battery run out. To analyze it, we can use the help of power supply.
Connect your cell phone with the power supply At the cellular phone is off, see the needle on the power supply amperage, usually when the cellular phone wasteful damaged battery, the needle will show the number ampere 100 mili amperes. When the analysis was right on the second step, then the next step is the release IC Power Amplifier (PA), then do check back in a second step, if the amperage needle silent, then certainly there are problems in the PA IC. Switch IC with a new PA, and do a re-test the above, if the needle still amperes, means your cell phone is back to normal.
In some cases, writers have tried to make improvements without a change in the IC with a new PA, but only release the old PA IC, IC PA then washed with thinners and cleaning the PCB board and IC PA is put back, and the results returned to normal mobile phone. Good luck!

LCD Repair Guide

in this section, Phone Repairing provides cell phone repair guide for LCD damage. LCD is an important part in cell phones because of the LCD, the user controls all the activities that will do.
LCD provides information to users about what he did on the keypad and what facilities are available in the mobile phone. If the LCD is damaged, the user will have difficulty operating the mobile phone, such as when to call, the user would find it difficult to find numbers that will go, then when want to send a message, users will find it hard to type a message.
One more thing about the LCD, the price of LCD parts are the most expensive among other parts. In this guide, you will know how to overcome the damage the LCD without having to replace it with a new one. Congratulations to download.

LCD repair guide download

Keypad Repair Guide

Keypad is an important part of a mobile phone device as a key plank bridge between the user's own cell phone. All orders to carry cell phones are on the keyboard, for example you want to play a music player, want to make calls, and other things you do via the keyboard.
Because of the very important function, so if the keyboard problem, directly affects the function from the cell phone. You can not make calls, can not open the message and so forth so that your mobile phone becomes useless.
For those of you who have problems with cell phone's keypad you, please download the following file, this file contains some instructions to repair the damage keypad Funny. Hopefully this guide can solve your mobile phone.

Keypad Repair Guide Download

Sony Ericsson K750 Repair

In this section, Phone Repairing provide ways to repair mobile phone Sony Ericsson K750. In this file you can find ways to repair the damage mic, keyboard, and others. For those of you who need it, please download at the link below and safely repair your cell phone.

Sony Ericsson K750 repair guide

Sony Ericsson K700 Repair

Furthermore, other models of mobile phone brands is Sony Ericsson K700. This file contains the following ways to improve the damage microphone, keypad, LCD, and others. Almost the same as the previous files, the damage that often occurs on the mobile phone model is also the same as the models before.
Please download the file here :

Sony Ericsson K700 repair download

Sony Ericsson K500 and K500i Repair

The second part of the guidelines to improve the mobile phone model Sony Ericsson K500, is now added to the K500i model. The two models are almost the same, but there is little difference. In this file there are ways to improve the damage microphone, keyboard, and others. Please download the file here:

Sony Ericsson K500-K500i repair download

Sony Ericsson K500 Repair Guide

Then, still on the Sony Ericsson mobile phone, this time, Phone Repairing providing a way repair Sony Ericsson K500 mobile phone. in this file there are ways to improve the damage in the process of charging battery, damage mic, keyboard, and various other damage that can help you solve the problem. please download the file here.
Sony Ericsson K500 Repair guide

Sony Ericsson K300 Repair Guide

Mobile phone repair guide this time was about the Sony Ericsson K300. In the file that you can download below is how to repair the damage from the keyboard, mic damage and damage in the process of charging battery. Please download file below and complete the problem immediately on your Sony Ericsson K300 mobile phones.
Sony Ericsson K300 repair guide

Samsung E700 Repair Guide

Below is Samsung E700 repair guide picture. Including Flexible repairing guide. Download the file and solve your Samsung E700 problem.
Download from link below :
Samsung E700 repair guide download
Wait for other repair guide file. Thanks

Sony Ericsson J200-300 Repair Guide

This is the other repair guide picture. This is guide for Sony Ericsson J200 and J300. Download the file below, it contain how to make keypad jumper and the other jumper guide.
Click this link :
J200 repair guide

Nokia 6100-3100 Repair Guide2

Continue our post before about Nokia 6100 and Nokia 3100 repair guide, Now Phone Repairing give you the other Nokia 6100 and 3100 repair guide.
Download file from link below :
Nokia 6100-3100 repair guide download
Wait our other post.

Samsung SGH C100 Repair Guide

Hello world, this is your Samsung C100 picture guide. Solve your problem now by downloading this file. Download schematic from link below :
Samsung SGH C100 repair guide download
Wait for other picture guide. Thanks

Nokia 6030 Repair Guide

Below is Nokia 6030 Repair guide. Its contain how to repair charging problem, LCD problem etc. Download the file now and solve your Nokia 6030 problem.
Nokia 6030 Repair Guide Download
Enjoy it.