Nokia N96 ON OFF Power Switch Jumper Ways solution

Here's the jumper solution that can be used to fix a damaged Nokia N96 power ON OFF switch especially when the PCB solder terminal pads is already been lifted or damaged.
The solution below shows the alternative way where to established a jumper wire and revive the power switch line paths.

Nokia N96 Power ON OFF Switch Jumper Solution

If the Power Switch PCB solder terminal pads if already lifted including the two resistors and nothing left on  the PCB board where you can apply a solder;
You can still find a way to revive the power switch and fix the Nokia N96. Find a way to retain the power switch position, you can used a dry bond to hold and strengthen the power switch  where it is originally mounted.

You may then remove the power IC (AVILMA) and then locate the solder ball bumps where the power switch line paths is connected. Managed to put and apply the tiniest jumper wire you have, then in-placed back the power IC.

Nokia n97 Not charging problem - microUSB charger no response solution

Here's the solution for Nokia N97 Charger Problem that shows no charger response or indication on the display when the charger is being plug-in. The solution below shows certain components that needs to check or replace if this problem occurred on Nokia N97.

Nokia N97 Not charging solution, charger no response problem

The solution above shows the charging protection circuit of Nokia N97, these are composed of a chip Fuse and a protection Diode; If this two components will breakdown or damaged it will result to Not charging problem such as charger no response on Nokia N97

Nokia N96 Keypad Not Working Full Solution

Here's the solution for a damaged Nokia N96 that result keypad failure or malfunction due to wet or water damaged, accidentally heavily dropped. This solution can be used as a guide for line tracing each particular keys that unable to work or respond when being pressed.

The solution below showed each keypad line connection between other keys on the PCB board.

Nokia N96 Keypad Not Working Solution

Nokia N96 Keypad IC Connection Tracks & Jumper Ways

The Nokia N96 keypad assembly are composed of the upper key which the navigation and music control keys and the lower part is were the NUMERIC keys since Nokia n96 is a slider type designed.

Since the upper keys are being connected and assembled on a flex or keypad matrix membrane, you can easily determine if the flex cable is faulty or already damaged if some of this keys will stop to function while the NUMERIC keys is still working.

Now if both upper and lower keys stop responding, you may then suspect that the problem lies on a faulty or damaged keypad filter IC.

If just only one or two keys that stop to responding, you may refer to the solution above and trace where is is being connected and check if the line is open or cut then manage to reconnect the broken again.

Nokia N96 White Blue Blank Screen Display Problem Solution

If ever tried to fix or repair Nokia N96 display problem issues and already tried installed or replacing a new LCD screen module and a Flex cable wire but somehow the problem still exists.
This solution can be used as a guide to repair a damaged Nokia N96 LCD screen display problems such as white screen, blue screen, blank screen, garbled, saturated or corrupted LCD screen displays.

The solution below shows the connection line paths of the LCD flex pin connector including the display filter IC's, which is very useful for deep hardware troubleshooting especially when the Nokia N96 device suffered wet or water damaged and then a display problem occurred.

 Nokia N96 LCD Display Problem Repair  Solution

After ensuring that the problem is not lies on the LCD Screen Module and Flex Cable Wire or already tried to replace this spares, you may then suspect that the problem lies on the two EMI-ESD display filter chips.

This two ESD-EMI filter will easily breakdown or might get damaged and then cut off the display signal data if a short circuit happens or an excessive Electrostatic discharge and Electromagnetic interference occurred.
If either only one display data signal line paths is being cut or open this will result to display problems.
Trace each line paths and by replacing the display filter IC might only possibly fix the problem.

Nokia N97 Mic, Mouthpiece microphone problem solution

This solution can be used as  a guide to fix or repair Nokia N97 microphone problem issues. A failure that no voice can be heard from the caller on the device.

This solution solution shows the components location of Nokia N97 microphone circuit that needs to be check if the problem occurs.

Nokia N97 Mouthpiece Microphone Solution

Repair tips:
Ensure to restore or flash the device firmware first before trying to calibrate hardware components.
If flash firmware updating  is already been done and nothing happens , you may then proceed to troubleshoot hardware components.
a) Trace and check the supply lines paths of the microphone module.
b) Check and or replace the resistors highlighted on solution above, the two resistors have 0 ohms resistance value while the other one has 100 ohms.
c) If all the resistors seems all working and or already replaced and the supply voltage is okay, you may then replace the digital microphone module.

For further troubleshooting Nokia N97 Microphone failure, there are instances that you may need to rework the audio IC(AVILMAS) and sometimes the problem lies on a faulty CPU IC (RAPIDO).

Nokia 2630 No Network Service Found Solution

Here's a revived solution for Nokia 2630 No network service found problem. This problem may happens if the device suffered water damaged and or heavily dropped. The solution below shows the Nokia 2630 RF (radio frequency) circuit. This holds as the transceivers of the data into the airwaves during transmission, and if this circuit will breakdown or being damaged it will result to NO NETWORK Signal problem issues.

Nokia 2630 No network service solution

Repair Tips:
Ensure that the device firmware is okay or successfully restored or flashed.
Try to upgrade into higher version and write a good PM files.
IF the firmware calibration already done but seems nothing happens you may proceed to trace, check or replace the corresponding components showed on the solution above. Make sure that the PCB board condition is still stable and not like bended or some damaged spots. Check also if there is oxidation build up, clean it first before you may proceed.
First check the PA supply voltage, this voltage is came from the battery B+ terminal and you can trace it between capacitors showed on the solution above.
If the voltage line paths is okay, try to replaced the PA (power amplifier).
Then if nothing happens, you may then try to rework or replaced the RF transceiver chip.
If all the chip is already been replaced but the problem still exists, try to replace the voltage controlled clock crystal oscillator.

Nokia 7230 No Network Signal Problem Solution

Here's a brief solution for Nokia 7230 No network signal problem. This solution shows the RF circuit on nokia 7230 that holds the radio signal  during data transmission.
Please note before you may use this solution, first ensure that the device firmware is totally calibrated, successfully flashed or restored and upgraded or downgraded. This solution below covers only for hardware failure that may not or can't be fix by software or firmware.



The Nokia 7230 RF circuit components mounting is similar to Nokia X6. This solution below is from Nokia X6 board. 

Nokia 7230 No Network Signal Solution

Just follow the instructions indicated on the solution above of which and where to start in  troubleshooting proceedings. In most common cases the RF Power Amplifier breakdown may most often causes the problem.

Nokia 7230 Ringer, Hands Free Loud Speaker No Sound Solution

 If already tried to checked the speaker on Nokia 7230 and seems it is working but still no audio sounds can be heard on it. This solution may possibly help fix and repair Nokia 7230 No Sounds can be heard on ringtones and hands free loud speaker.
After ensuring that speaker is okay , you may then check or replace the components showed on the solution below. These are composed of filter coils or inductors, you may also trace the audio signal line paths and check if the line is not open or cut.

Nokia 7230 Ringer and Integrated Hands Free Loud Speaker No Sound Solution

If the filter coils is okay and the line paths is not being cut or open, you may then suspect that the problem may lies on the GAZOO IC, reworking this chip might possibly fix and solved Nokia 7230 Ringer and Hands Free Speaker Problem.

Nokia 7230 Memory Card Not Detected Repair Solution

If ever having a problem on Nokia 7230 that indicates No Memory Card detected even tried to inserting a working microSD memory card but the the device unable to read it or detect it. This solution below simply shows the particular components that needs to be check, trace and or replace if having memory card problem on Nokia 7230.

Nokia 7230 Memory Card Not Inserted Problem Solution

First, ensure that the memory card slot pins are free from oxidation and foreign objects. Check also that it is not damaged or misaligned and still properly soldered. Trace and check the voltage supply line paths as well also the ground line. If the voltage supply and ground lines is okay, but the problem still exists, you may then suspect that the problem lies on the GAZOO IC, reworking or re-balling the chip might possibly solved and fix the problem

Nokia 7230 Device Not Detected on USB to PC connection

This solution may work and can be applied if Nokia 7230 does not detected if being plug-in to a personal computer. This solution shows the particular components that needs to check or replace if the device handset is not detected over the USB.

Nokia 7230 Device Not detected on USB to PC connection

Check all the components showed on the solution above it is labeled according were to begin with.

Nokia 7230 Mic, Microphone mouthpiece Not working solution

This solution covers for Nokia 7230 if the microphone failed or no voice sound can be heard over the receivers mobile phone. This solution is simple guide that lets you trace or check certain components on nokia 7230 PCB board that might cause the problem.

Nokia 7230 Microphone Not Working Solution

Check and ensure that the microphone module is okay or try to install a new replacement on it.
The solution above showed the components such as the filter coils and 47 ohms resistor if the microphone is okay. Replace these components if found damaged.

Nokia X3 Earpiece Speaker No sounds can be heard solutions

Here's a solution for nokia X3 Earpiece Speaker No sounds output can be heard, If you ever struggling to fix or repair this kind of problem and you already replace the earpiece speaker and the flex cable wire but the problem still exists. This solution may help and possibly fix the problem occurred.
 The solution shows below the components that may need to check and replace if found damaged. This components is composed of filter coils a fusible resistor with 0 ohms resistance values.

Nokia X3 Earpice Speaker Sounds failure problem solution

Repair tips: After ensuring that the earpiece speaker is working okay and the flex cable also perfectly fine or having it replaced with a new one but the problem still unsolved. You may check the components indicated on the solution picture above, first check the two resistors, these resistors has 0 ohms value. next check also the filter coils if open and also the capacitors and ESD filter resistor id shorted or not. Check also the line tracks of each corresponding Pins from the flex pin connector. It is connected  to pin 17 and 18 as marked also in the solution above.
If ever found a damaged, open or shorted components, replace it at once then try to reassemble back the device and have a test.

Nokia 7230 earpiece speaker repair solution

Here's the solution for Nokia 7230 Earpiece speaker problem. This solution may help fix and repair if there is no audio sound can be heard over the earpiece speaker.

The solution below shows the two filter coils and a ESD protection resistor that needs to be check or replace if the earpiece speaker is working okay and the flex cable wire is also well and or already tried and replacing a new spare.

Nokia 7230 Eapiece Speaker No audio sound solution

The GAZOO IC holds the earpiece audio signal that being feeds to the earpiece speaker. If all corresponding components such as the speaker, flex cable and the filter coils showed on the above location, you may then suspect that the problem lies on a faulty GAZOO IC. Reworking it might possibly solved the problem

Nokia X6 No LCD backlight LED - Dark black LCD screen display solution

Dark black LCD Screen Displays Nokia X6 is caused by the LCD's illuminating backlight LED's failure to light up on the back of the display screen. If this happens you may need to try to replace a new LCD display module replacement on it. If happens that the problem still persists you may then check this corresponding components showed on the solution below.

Nokia X6 LCD screen display backlight LED failure solution

The solution above showed the LCD display backlight LED driver circuit of Nokia X6 PCB board.
You need to check, trace, replace particular components highlighted on the solution above and follow some simple  procedures indicated.

Nokia 2630 ON-OFF power button switch jumper ways solution

Here's the jumper ways solution for nokia 2630 ON and OFF switch if the handset device showed charging indication when the battery charger is plug-in but unable to power up when the power button is being pressed.

If the keypad flex is working okay and already tried a new replacement but still it won't power up when the power key is pressed.
The solution below showed the alternative spot where to apply a jumper wire when the power key line paths is cut .

Nokia 2630 power ON OFF jumper ways tracks

From the keypad flex PIN connector you may trace the line paths showed on the solution above and apply the jumper wire if the line is open or cut.
If that line paths is okay you may then proceed to rework the UEM power chip.

Nokia 2630 White Screen, blank and blue LCD display problem solution

This solution may used as a guide to fix and repair Nokia 2630 LCD screen display problems like white screen, blue screen, blank or empty screen displays.

After ensuring that the LCd screen module is okay or already tried installing a new replacement and then also ensuring that the device firmware is successfully flash or restored,
you may check and or replace the component showed on the solution below.

Nokia 2630 White, Blank and Blue Screen Display Problem Solution

Check the LCD Pin Connector, make sure that is free from dirt and oxidation build up.
There are three Resistors used on the display data connections, this reistors has 100 ohms resistance value, you may check or replace this components. If the three resistors is okay and the problem still exists, you may suspect that the problem may lies on a faulty UPP CPU IC.

Nokia 7230 insert SIM Card Problem Solution

This solution may possibly help fix and repair a damaged Nokia 7230 that result to Insert Sim card problem issues. If the mobile handset device does not accept any kind of sim card and only shows insert sim card in the LCD screen display, you may refer to this solution below to trace and check certain components that might get damaged and result to insert sim card problem.

Nokia 7230 Insert Sim card repair Solution

The solution above shows the connection of the sim card pin connector and its signal line paths through to the GAZOO IC.
You may need to ensure that SIM card pin connector is perfectly clean and free from any oxidation build up.
The SIM card supply voltage or VSIM is one particularly line paths that may need to check first for this line paths will easily open or cut especially if the nokia 7230 suffered water  damaged.
If the Sim voltage line is okay and you get a voltage reading on that area. You may then proceed to suspect that the GAZOO chip is faulty, reworking the chip might help fix and solve the Nokia 7230 insert SIM card problem.

Nokia 7230 White Screen, Blue Screen and Black Screen LCD Display Problem Solution

This solution may used to troubleshoot and repair a damaged Nokia 7230 that result Display problem issues like white screen, blue screen, blank or black screen, garbled and saturated screen displays that is not due to LCD Screen Display Module problem.
This solution may possibly help fix and repair Nokia 7230 after ensuring that the LCD screen display module is working okay and or already tried installing it a new replacement spare LCD module.

Nokia 7230 Display Problem Repair Solution

The solution above shows the Line tracing spots from the LCD flex pin connector to a certain components On Nokia 7230 PCB Board. You may check and trace this line tracks and check the corresponding components connected to it. If all the line tracks is okay. You may then suspect that the application processor or CPU is faulty or being damaged.
Please take note that handling CPU IC is  complicated and needs expertise, so observed extra precautions.

Nokia N97 Earpiece Speaker No Sounds Can Be Heard Repair Solution

Here's the solution for Nokia N97 Earpiece Speaker No audio sound can be heard over it from a caller.
This solution may only works and can be applied after ensuring that the Earpiece Speaker and the Flex cable wire is working okay or already replaced but seems nothing happen and the problem still exists.

This solution below shows the line tracks of the earpiece speaker connection to certain components that needs to be check for further earpiece speaker repair on Nokia N97.

Nokia N97 Earpiece Speaker No Sound Repair Solution

 If the speaker and the flex cable is already checked or been replaced but does not solved the problem you may then check the corresponding components shown on the solution above.
There is a Filter Coil and an ESD Protector chips is used in the circuit, you may start to check on that spots. You may also trace the line paths from the Flex Pin connector through to the said components.

If those components seems working well or already tried by replacing them,You may then try to re-flow or reheat the Power and Audio IC or Reworking it might possibly solved the problem..

Nokia 7230 Full Keypad Solution- Keypad IC Jumper ways and Tracks

Here's the full keypad solution for Nokia 7230 keypads failure or malfunction.
This solution may possibly help fix Nokia 7230 if any certain keys stop responding or not working.

This solution shows the line paths of the Numeric keypads only, the navigation keys like SELECT, UP, DOWN, LEFT, RIGHT, Soft Left, and Soft Right and including the Power Key are connected within the Flex keypad membrane, so if the above keys only stop responding you may need to check and replace the flex cable first before using this solution below. Since all keys including the Upper keys or Navigation keys and the Numeric keys are both connected  to the EMI-ESD filter IC. There is a certain point and possibility that all of these keys may not work or stop responding due to a water damaged, you may then proceed to use this solution below.

Nokia 7230 Keypad IC Jumper ways and line tracks

The numeric keys are group by outer and inner core layers of connections. There is a resistors which has a resistance value of 470 ohms that is being used in particular connections, you may check and replace this components also if found damaged.
The ESD-EMI filter chip protect the circuit from Electrostatic hazards, there is a possibility that this chip will breakdown and cause the keypad not to work or function, for it cuts off the its connection line paths through to the Application Processor Chip or CPU. Some factors are those due of water damaged, dirt, molds and oxidation build up.