All Gsm Solution

Nokia 3500c Hands Free, Ringer Speaker No Audio Sound Solution

2014-03-20T14:26:00.007+06:00

Here's the solution for NOkia 3500 classic No Hand Free Speaker sound can be heard repair solution. If you ever tried checking and ensuring that loud speaker seem working but still there is no audio sound can be heard on the device when hands free is activated. This solution shows particular PCB board components that may possibly faulty or damaged and cause the Nokia 3500 not have an audio sound output over the speaker.

Nokia 3500c Hands Free & Ringer Speaker No Sound Solution

Ensure the speaker is working, replace if the sound is distorted.
Check the connected filter coils on the circuit, replace if found damaged.
Trace the line paths, mend a jumper wire if found open circuit.
If the line paths and the filter coils are okay, rework the audio IC (RETU). Replace if does not solved the problem.

Nokia X6 Camera, Slider Lock, Volume Up and Volume Down Control Button Switches malfunction solution

2014-03-20T14:26:00.004+06:00

Here's solution if something went wrong with Nokia X6 camera button and volume control switches that stop responding when being pressed. Button and switches may stop to function if being broken or damaged and sometimes cause by an oxidation. Simply by replacing it will fix the problem.
If the said button switch is okay seems working but still unresponsive you may then consider that the problem may lies on a faulty circuit components on the PCB board.

This solution below shows the line paths of each particular button switches of the camera, slider lock and the volume up and volume down buttons.

Nokia X6 Camera, Slider Lock, Volume Up and Volume Down Repair solution

Repair Hints:
Ensure that the button switches is perfectly clean and working okay.
There is an EMI-ESD filter IC is connected to each button switches line paths., Check this filter IC and trace the corresponding button switches line paths first before trying to replace it.
The Volume up control switch is connected directly to the I/O expander chip, you may check and rework this
chip if only the volume up is not working without touching the ESD filter IC.

Nokia X6 Send, E60 and END keypad keys failure solution

2014-03-20T14:26:00.000+06:00

If the Send, E60 and End key button keys failed to respond on Nokia X6, and you already tried to restore, reset, flash and update the device firmware but nothing happens.
Keypad keys malfunction on Nokia X6 may also possibly caused by a faulty keypad flex, cleaning or by replacing it will help solved the problem.

Nokia X6 joystick flex cable wire

If after replacing and ensuring that the flex is okay but the keys still unresponsive, you may then consider that the problem lies on a faulty keypad circuit's hardware components on the PCB board. This solution below will tell us which components holds and controls the keypad keys to function or work.

Nokia X6 Send, E60 and End key malfunction solution

Check the keypad pin connector first ensure that it is free from dirt and oxidation.
From the keypad pin connector there are three line filter coils located near to it, have a check on this components and replace if found damaged.
From the keypad filter coils the lines is feeds to a keypad filtering chip or keypad IC, you may then check this chip, trace its line paths and replace if found damaged.
The I/0 Expander Chip is the keypad controller components, which holds and control the keypads including the Touch Control Module. You may also rework or replace this chip for further harder keypad problem repair on Nokia X6.

Nokia N97 mini white, blue and blank screen display problem solution

2014-03-20T14:25:00.002+06:00

A display problem like, white screen (WSOD), blue screen, blank or black screen, saturated and garbled screen displays, can be cause by a faulty or damaged LCD screen display and can be fix by installing anew LCD replacement on it. Sometimes an interrupted firmware also causes the problem and can be fix by restoring the device firmware. IF all of the above does not solved the problem you may then consider that the problem lies on the hardware components failures.

The solution below will show us a particular hardware components that holds and control the display data signals on Nokia N97 mini which enable the LCD screen to work.

Nokia N97mini Display Problem solution

The LCD display connector may also cause the problem if being corroded and oxidation occurs, cleaning it first is a good idea.
If the device suffered like wet damaged, accidentally heavily dropped the display controller IC and its particular line paths may also possibly damaged. Reworking and tracing each corresponding line tracks will help fix display problem on Nokia N97 mini.

Nokia X6 Camera Failure Problem Solution - hardware repair solution

2014-03-20T14:24:00.006+06:00

Before using or applying this solution ensure to restore,flash and update,
the device firmware on Nokia X6. Oftentimes camera failure is cause by an interrupted firmware, restoring or flashing it back again will fix the problem. But
if that does not solved the problem you may then proceed to hardware repair troubleshooting, especially
if the device suffered from wet damaged and accidentaly dropped by the user.
The problem may possibly lies on faulty hardware components.

This solution below shows the main camera circuit on Nokia X6 and can be used as a guide to fix and repair camera hardware failure issues.

Nokia X6 Camera Hardware Problem Solution

Camera Repair Tips:
a) Try to replace a new camera replacement module.
b) Check and clean the camera connector.
c) Do supply voltage measurement on corresponding camera supply voltages (see solution above). You can check this voltages while trying to enable the camera in ON condition.
There are three voltage converters circuit that feeds voltage to enable the camera. This voltage ranges are as follows, 1.8volts, 2.8volts and 1.3volts DC voltages.
This voltages are converted by a DC to DC converters chip. The chips converts the Battery voltage which is 3.7 volts and drop it down or minimize it to 1.8, 2.8 and 1.3 DC voltage.
So, ensure that the battery supply voltage is properly feeds to each of the DC converter chips.
If the battery supply voltage is present and still there is no voltage output you can read on each chip, you may then check or replace the DC to DC converter IC's.

d) If all voltages reading is working good and no problems found, but the problem still exists, you may then proceed to rework or replace the Camera Accelerator IC this chip holds and control the camera data signals before it feeds to the application processor IC.

Nokia X6 No Network Signal Reception problem solution - hardware repair solution

2014-03-20T14:24:00.003+06:00

Here's the solution that may help and guide to repair Nokia X6 having a No Network Signal reception. If ever tried to restore and update the device firmware but nothing happens, this solution shows the corresponding RF circuit of Nokia X6 PCB board that might something wrong, faulty or being damaged.

Nokia X6 No Network Signal problem solution

Repair Tips:
1. Apply and supply voltage to the PCB board using desired DC regulated power supply voltage of 3.7 volts. Check the supply voltage from the cellphone's battery through to the corresponding components highlighted in red color, these are battery supply voltage filter coils that being feeds to RF circuit components. IF there are no voltage readings on that areas, check the continuity of the battery positive terminal on that certain parts. Apply jumper if the line is cut or open. check also the filter coils and replace if found damaged.
2. Check and measure the secondary voltage output from the RF DC to DC converter chip highlighted in orange color. If there is no voltage readings on that spots, rework or replace the DC to DC converter IC.
3. Check or replace the Clock crystal oscillator. (VCTXO)
4. Rework or replace RF Power Ampilifier IC (PA)
5. Rework or replace Front End Module IC (FEM)
6. Rework or replace Radio Frequency IC (RF IC)

Nokia X6 Touch Screen Problem Solution

2014-03-20T14:24:00.000+06:00

If ever trying to fix Nokia X6 touch screen failure issues and you'll do replacing the touch plate module, trying to calibrate the touch screen setting but unresponsive and restoring, upgrading and flashing the device firmware but nothing happens, the problem still exist and the touch screen left unresponsive.
This sometimes happens if the device suffered due to a wet damaged, heavily dropped and any related damaged accidentally done by the user. In this case only a hardware repair may only help solved the problem.
This solution below show the Nokia X6 PCB board components that holds and control the touch screen panel to work.

Nokia X6 Touch Screen Failure Solution

The solution above showed a Touch Accelerometer chip that used to sense orientation, detect direction in multi-access direction of the Touch Plate module. If the chip is damaged the touch screen will not work and remains unresponsive. This chip needs a DC supply voltage of 2.78 volts in this designed on Nokia X6 and also. The 2.78 Dc volts is also feeds and supply the touch plate module.
You may check this supply voltage first before trying to rework, re-ball or replacing the touch accelerometer chip.

Nokia N92 Full Keypad Solution - With keypad IC Jumper Ways solution

2014-03-20T14:23:00.003+06:00

Here's a full keypad solution that may useful and possibly help fix and repair Nokia N92 keypad problem or failure. If any certain keys will not been able to function this solution will show you each keypad keys line tracks and connections, including the keypad filter IC that may also cause the keypad keys failed to function if damaged or faulty.

Nokia N92 Keypad Keys Malfunction Solution

Nokia N92 keypad IC jumper ways

There are two keypad ESD filter is being used on the keypad circuit of Nokia N92, (see solution above).
The small keypad IC holds the volume UP and DOWN control and the Camera Shutter button, and some group of keys.
The bigger one holds all the keypad keys, if this keypad filter IC is damaged all of the key will not respond or unable to function. By only replacing it with a new one will only possibly fix or repair the keypad problem on Nokia N92.

Nokia 2700 classic Power ON/OFF Key Solution - Switch button jumper ways solution

2014-03-20T14:23:00.000+06:00

Here's the solution that may help fix and repair Nokia 2700 classic Power problem. This solution is for Nokia 2700 classic that shows charging indication but doesn't get On or power up when pressing the power key switch button. Although this solution came late but still there are many who are looking and requesting this solution.

Nokia 2700C Power On -Off key Switch Line Tracks

There is line test spots near the Keypad filter IC that can be easily check the power/ end key line paths, just apply a jumper wire if that line is open or cut.
If the said line spots is okay, you may need to check and replace the upper Keypad Filter IC.

Nokia X6 Bluetooth, WLAN and GPS solution - hardware repair solution

2014-03-20T14:22:00.006+06:00

Bluetooth, Wireless LAN and GPS connection problem can be cause by a firmware failure and can be easily be fix by restoring, updating or flashing the phones firmware again. But after doing any firmware repair and the problem still exists the problem may certainly lies on the hardware components failures.

This solution below may possibly useful and help fix and repair Nokia X6 Bluetooth, WLAN and GPS problem issues for it shows the Bluetooh, WLAN and GPS component circuit.

Nokia X6 Bluetooth, Wireless LAN and GPS solution

Repair Hints: Ensure that the firmware of the device is successfully calibrated, upgraded and restored.
1) Check all corresponding supply voltages in the circuit
2) Check the RF buffer clock feeds from the RF circuit
3) Check the Bluetooth and WLAN antenna
4) Rework the Bluetooth IC first, the WLAN will not work if the Bluetooth IC is faulty.

Nokia X6 Insert Sim Card Problem Solution

2014-03-20T14:22:00.002+06:00

Insert SIM card problem may happen and shows on the LCD screen display, if the SIM card inserted on the mobile phone device is already damaged but IF the SIM card card is working good and the device handset will not accept any kind of SIM card, the problem may lies on the device itself. This may happen if the mobile phone is damaged by a liquid or water damaged and any means of accidental damage by the standard user.

Here's solution that may help possibly help fix and repair Nokia X6 Insert SIM card problem.

Nokia X6 Insert SIM card Solution

This solution shows the SIM card circuit on Nokia X6, including The line tracks of the SIM card pin connector through to each corresponding solder ball bumps of the IC components (AVILMAS) that holds the SIM card to work.

Nokia X6 Ringer, Hands Free Speaker no audible sounds solution

2014-03-20T14:21:00.006+06:00

This solution covers and may possibly help solved Nokia X6 Ringer and and Hands free loud speaker No sounds can be heard. You may need to ensure that the loud speakers is working well before applying this solution.

Nokia X6 Ringer and Hands Free Speaker No sounds problem solution

In Nokia X6 the handsfree speaker came with two channel the left and the right channel or so called stereo type. The audio signal is feeds from the power and audio chip (AVILMAS) and feeds to a audio amplifier IC to boost and amplify the sounds intensity.
You may need to check, trace, replace and rework those corresponding components indicated on the solution picture above.

Nokia X6 Digital Mic, mouthpiece microphone problem Solution

2014-03-20T14:21:00.003+06:00

Here's the solution that might possibly help solve Nokia X6 mouthpiece microphone failure, a problem that no audio sounds can be heard from the other receiving device during a call is created.

Nokia X6 Microphone sound failure solution

The red lines indicated in the solution above is the microphone's supply voltage if this voltage is cut or not present the mic will not tend to work. There are also resistors that where the digital audio signal is flow across to this components that has a resistance value of 100ohms each, check and replace it first before attempting to replace the Digital Microphone Module.

Nokia X6 Earpiece Speaker No Audio Sound Solution

2014-03-20T14:21:00.000+06:00

if having tried to fix Nokia X6 Earpiece Speaker Problem that No Audio sound output can be heard and you already check speaker is okay and also already tried replacing the Flex cable wire but he problem unsolved. This solution might possibly help to solved the problem.

Nokia X6 Earpiece Speaker problem solution

If the earpiece speaker and flex cable wire is working okay, those particular components highlighted on the solution might causes the problem if the device is severely damaged by any means of liquid or water damaged. Start to check on the flex pin connector and way down toall corresponding components composed of filter coil and bypass ESD resistor, replace at once if found open or shorted. If the filter coils were okay you may need to rework the power and audio IC (AVILMAS) trace the line paths first while the IC is being removed, then reball the IC, clean the solder balls surface and inplaced it back again.

Nokia X6 microUSB to PC connection, not detected problem Solution

2014-03-20T14:20:00.005+06:00

If having problem connecting from USB to PC on Nokia X6, this solution may help if the device is not detected after ensuring that the USB cable wire is okay. The device driver is properly installed but the problem still exists.

This solution shows the particular components might caused faulty or damaged and result to a problem connecting to the PC through USB port.

Nokia X6 USB Not detected Solution

Repair hints: Check the microUSB connector if damaged, oxidated or corroded, clean or replace it.
Check the filter coil and ESD protection chip, replace if found damaged. If the problem still persists check the power supply of the USB transceiver IC, it is conneted to the battery positive line voltage, if the voltage is okay, rework or reball the USB transceiver IC.

Nokia X6 Charger Not Supported Solution

2014-03-20T14:20:00.002+06:00

Here's a solution that shows the location of BTEMP resistor that caused Charger Not supported on Nokia X6 if damaged. This components needs to replace if cahrger not supported shows on the LCD screen display when the battery charger is being plug-in.

X6 Charger Not Supported btemp resistor location

This Btemp resistor rated value is 47K. You may easily find it on other non working Nokia PCB board.

Nokia C5 hardware solution - No Earpiece Speaker Audio Sound solution

2014-03-20T14:19:00.005+06:00

Here's a solution that may help fix and repair hardware related damaged on Nokia C5 No Earpiece Speaker Audio Sound output. If the earpiece speaker already been check and seems to be working fine but still no audio sounds can be heard. you may need to check those certain components indicated on the solution.

Repair hints:
1. Check/replace the ear speaker
2. Clean the speaker terminal pads
3. Check/replace the filter coil
4. Check/ replace the ESD filter or remove it,

Nokia C5 Charger Not Supported Error Problem Solution

2014-03-20T14:19:00.002+06:00

This solution may help fix if the Nokia C5 shows "charger not supported error when the battery charger is plug-in. If the error message shows, this probably cause by a faulty hardware components on Nokia C5 PCB board.

Just refer to the solution below and locate the highlighted components for it is part of the charging indication components.

Nokia C5 Charger Not supported problem solution

Hints for repair a Nokia C5 charger not supported problem:
1. Try to use another phone's battery and charger.
2. Check/clean the battery terminals and connector
3. Check/ replace the 47K resistor as shown on the solution above

Nokia C5 Not Charging Problem Repair Solution

2014-03-20T14:18:00.005+06:00

Here's the solution for Nokia C5 Not Charging problem , this simple solution provides the basic details on how to fix the problem. Just refer to the solution below and follow some steps procedures on how to troubleshoot the problem.
This solution may works on 'charger no response indication' when any working battery charger is plug-in to the DC jack.

Nokia C5 Not Charging problem Solution

Repair hints for Nokia C5 Not Charging problem:
1. Visually check the charging pin connector( DC jack) for possible damaged, clean,fix if the terminals is misaligned or replace it.
2. Clean the charging pin terminal contact pads.
3. Check the battery and try using another working phone's battery.
4. Check the battery terminals, clean if oxidized.
5. Check/replace the fuse
6. Check /replace the chip diode
7. If the above procedures doesn;t fix the problem, the possible faulty is the GAZOO IC, reworking or replacing it will only fix the problem.

Nokia X6 LCD Display Problem Full Solution

2014-03-20T14:18:00.002+06:00

Here's a solution that can be used to fix and repair Nokia X6 Display problem issues like white screen, blue screen, blank screen, garbled and saturated screen displays.. This solution may help if having a LCD display problems and already tried to upgrade or restore the device firmware and replaced it with a new LCD module replacements but the problem still exists.

Nokia X6 LCD Display solution

There are two voltage supply that also need to the LCD display to work, the 1.8 volts and 2.78 volts.The solution above alao shows particular components that needs to check and replace if found faulty or damaged like the Display ESD-EMI filter IC.

If those supply voltages seems to be okay and the LCD display ESD-EMI filter IC is working well and already been checked and replaced the solution below shows the next components that also needs to check, rework or replace. On Nokia X6 there is a display controller IC that is being used and connected on the LCD display circuit.

Nokia X6 Display problem solution ( Display controller IC )

If the LCD display controller chip become faulty or damaged this will also result to a display problem issues on Nokia X6. But before trying to reflow, rework or replaced you need to check first the three filter coils connected near to it and trace each line paths to the LCD pin connector.

Nokia X3 Hands Free Ringer speaker No audio Sounds Solution

2014-03-20T14:17:00.008+06:00

This solution covers to fix and repair Nokia X3 Hands Free Speaker No audio sounds can be heard or No ringtone sounds. the solution below shows particular components that needs to be check or by then replace if found damaged. If the loud speaker component is working well when checked up, you may proceed to check this highlighted components showed below, for it where the audio sounds signals is feeds from the audio IC module.

Nokia X3 hand free, Ringer Speaker No Sounds solution

Those components were composed of filter coils, it is easy check each of them by using a multimeter in a continuity test method. There are two channels in Hands Free speaker circuit the left speaker channel and the right channel. If only one channel is not working, you may concentrate only on that certain part. Just configure the solution above.

Nokia X3 No LCD and keypad backlight LED solution

2014-03-20T14:17:00.005+06:00

Here's a solution that may possibly help fix and repair Nokia X3 Failure of LED backlight on keypad and LCD screen display. This solution completely shows the lines paths and particular components that may need to check and replace if the LED backlight failed to light up.

Nokia X3 No LCD and keypad backlight LED repair solution

There is a fusible resistor is been connected to the LED backlight circuit in case a short circuit occurred if the device is being damaged by a liquid (Wet Damaged). See solution above marked with number 1.
That resistor is the one feeds the power supply from the phones battery.
If that resistor is open both keypad and LCD display LED's will not light up for it is the main LED supplying positive voltage.
The negative current or voltage has two circuits, one for the LCD (marked with number 4) and the other one is for the keypads (marked with number 3).
You may check / replace each particular corresponding connected components highlighted on the picture for further troubleshooting.

Nokia X3 LCD and keypad backlight LED failure solution

Nokia C3 Display Problem Solution - White, blue blank screen displays solution

2014-03-20T14:17:00.002+06:00

Here's a solution that may possibly help fix and repair Nokia C3 display problem like white screen, blue screen, blank screen, garbled and saturated screen displays.
Note: this solution may only work and can be applied after ensuring that:
a) the Flash firmware is okay
b) the LCD Display module is okay or have tried replacing it with a new one

This solution below shows the display circuit connection of Nokia C3 and its corresponding line connections including the pin connector's pin configuration.

Nokia C3 Display problem solution ( LCD pin connector's line tracks)

Repair Tips:
1. Check the LCD pin connector, make sure it is free from dirt, oxidation and corrosion. Clean it and apply solder if the pins found a cold solder or broken.
2. Check the two voltage supply it is 1.8 and 2.8 DC volt(see solution above)
3. Check the connected two resistors near to the pin connector this two resistor has a value of 0 ohms and 100 ohms. replace if found damaged.
4. If all of the above components is okay, the last and hard enough to deal with is reworking the JUNO chips. For beginners, you may ask assistance to your Head Technician or Master Tech, working with JUNO IC needs expertise, so apply extra precautions.

Nokia X3 Display problem solution, Full Display IC Jumper ways

2014-03-20T14:16:00.005+06:00

Here's a full display problem solution for Nokia X3, If you ever having tried to replace a new LCD module replacement and updating the firmware by only trying to fix a Display problem, like White screen, Blue screen, blank screen, garbled, saturated and etc on X3. but the display problem still unsolved.

This solution below shows the connection of display ESD filter IC to each certain pins of the B2B connector.

Nokia X3 display problem solution

Nokia X3 display IC line tracks

If the the Display ESD filter chip is damaged this will result to display problem issues. By replacing them will only possibly solved the problem.

Nokia X3 keypad problem full solution

2014-03-20T14:16:00.002+06:00

Here's a full solution of Nokia X6 keypad problem and failure. This solution shows the complete line tracks for easy tracing particular keys that stop responding including the camera and volume control switches button.

Nokia X3 keypad keys, camera and volume control button switches solution

Each key were group in one line of connection, each connection is filtered by an ESD filter IC. The solution above shows how each certain keys are being connected to the keypad filter IC. There are three keys commonly connected together in one line of connection, therefore if only one or two key is not working, you may consider that the problem lies only on an open path of connection. If there are three and above keys does not work you may considered that the keypad ESD filter is damaged or faulty.