Nokia N 72/72 Short Circuit Solution Nokia N 72/72 Short SolutionNokia N 72/72 Short Circuit Solution Nokia N 72/72 Short Solution

Nokia N 72/72 Short Circuit Solution

Nokia N 72/72 Short Solution

Nokia N 72/72 

Nokia N70 Short Circuit Repair Solution, Follow this thread step by step :

1. Take out Z7500 (No.1) to cut off current to VBatt ke PA. If not short circuit, its means PA is broken.
2. Take out L7503 (No.2) to cut current to VBatt to RF IC (HINKU/VINKU). If not short circuit, RF IC is broken.
3. Take coil L1474 (No.3) to cut current VBatt to LED Driver N1471. If not short circuit, change LED driver IC.
4. Take out L4201 to cut Vbatt to IC SMPS N4200. If you take out this coil and your phone not short circuit, its means IC SMPS N4200 was broken. Don'nt change IC N4200, Just make a jumper VCore to VCoreA.
5. Take out IC N4201, APE Regulator (No.5). If not short anymore, its means IC N4201 was broken. Just throw away IC N4201 and maje a jumper VIO to VDDR_APE.
6. Take out LED Driver N2301 (No.6) to cut VBatt to IC N2301. If not short circuit anymore, change with the new one.
7. Take out IC Front Camera N1472 (No.7), if not short anymore its means this IC was broken.
8. Take out IC N1470 & N7505 (No.8), If not short anymore. Change it.
9. Take out Bluetooth Module. If not short. Change this IC

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Nokia 2720 fold buzzer, hands free speaker problem solutionNokia 2720 fold buzzer, hands free speaker problem solution

Here's the Nokia 2720 fold solution for not working buzzer or hands free speaker problem. This solution provides some simple hints on how to fix the buzzer problem.

The Nokia 2720 the buzzer is mounted near the LCD screen displays and also associated with the LCD flex ribbon cable assembly connection. Refer to the solution below and follow some step by step guide on how to fix the buzzer or ringer problem.

Nokia 2720 fold buzzer, hands free speaker problem solution

Repair hints for not working nokia 2720 fold cell phone ringer speaker problem:
1. Check the flex ribbon cable assemblies for possible damaged, then replace if confirmed faulty.
2. Check the phone loud ringer speaker using a multimeter, or replace with a new one.
3. Check/clean the LCD flex ribbon cable pin connector.
4. Trace the connection from the pin 7 and 10 down to the two 120 ohms resistors near the LITEPLUS IC.
5. Check/replace the two 120 ohms resistors.
6. If the above procedures does not solved the problem, the possible faulty will be on the liteplus IC.

Enjoy!
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Nokia 5000 Signal problem,Nokia 5000 Network problemNokia 5000 Signal problem,Nokia 5000 Network problem

Here's a solution to fix Nokia 5000 Signal problem related issues like no signal being intercepts, show a dropping signal on the display. This solution simply shows the location of the components and tests spots to check with when trying to fix nokia 5000 signal loss.

The solution picture guide indicated with numbers are the test spots and components might possibly get damaged if the signal loss occurs. In most  cases the RF signal is loss or become weak if the RF IC and the RF power amplifier IC (PA IC) possibly damaged. You can check the corresponding power supply voltage first before attempting to rework or replace it with a new replacement spare component parts. ..........................................................................For More Information Continue Visit on http://gsmworldfree.blogspot.com/ More Use full Information Coming Soon. Wait For More New Information.And Post Your Comments In All Post.Email:ajcellpoint@gmail.com Continue>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Solution for Nokia 2730c Not working LCD display backlight LED Solution for Nokia 2730c Not working LCD display backlight LED

Here's a solution that may help fix Nokia 2730c LCD display backlight problem. If the display problem goes dark it indicates that the LCD backlight LED's were not working.

This solution below shows the Nokia 2730c LCD display backlight components that holds and control for the LCD screen display backlight to glow. If one of these components may become faulty due to wet or water damaged it will result to LCD's back light failure.

Solution for Nokia 2730c Not working LCD display backlight LED

You may need to trace the connection line tracks, supply voltages and check some of the backlight LED driver components shown on the solution above. You may start to check the highlighted components for it is more prone to be easily damaged when a short circuit occurred. Check and replace if already found damaged. ..........................................................................For More Information Continue Visit on http://gsmworldfree.blogspot.com/ More Use full Information Coming Soon. Wait For More New Information.And Post Your Comments In All Post.Email:ajcellpoint@gmail.com Continue>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Nokia 2730c full keypad connection - jumper ways and line tracks

Here's a complete Nokia 2730c  keypad solution with keypad connection jumper ways and tracks that can be used to repair a damaged Nokia 2730 classic keypad connection.

This solution can be used to fix if any certain keys that is not working or responding.
Just see the solution below for it shows the complete line paths and connection of the Nokia 2730c.

Nokia 2730c full keypad connection - jumper ways and line tracks

The above solution also shows the Keypad Filter IC solder bumps connection, you can used it when having trouble finding the Nokia 2730c keypad filter IC replacement. ..........................................................................For More Information Continue Visit on http://gsmworldfree.blogspot.com/ More Use full Information Coming Soon. Wait For More New Information.And Post Your Comments In All Post.Email:ajcellpoint@gmail.com Continue>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Nokia 2730c LCD Screen Display Connection Jumper Ways and Tracks

Here's a Nokia 2730c  LCD Display Problem Solution with jumper ways and connection tracks, that may help solve display problems like, blank or empty screen display, blue screen display, white blinking screen display, saturated or garbled screen display.

If encountered such display problem on Nokia 2730c, you must first try to install a new replacement LCD screen module and update the device flash firmware. Ensure also that the LCD pin connector  is not damaged or lifted.

Nokia 2730c LCD Screen Display Connection Jumper Ways and Tracks

The above solution shows the LCD display connection line paths from the LCD pin connector to a corresponding resistor components near the application processor chip. These resistors has a resistance value of 33 ohms each. You must also check and then replace this resistors if found damaged to obtain the display signal data that feeds to the LCD Screen module. The LCD data signals were generated from the CPU chip and then feeds to these resistors before it goes through to the LCD screen.

If there is an open line paths found just apply a jumper wire on it to reconnect the cut or open line paths.
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Nokia 2730c Power On and OF key Jumper Ways Nokia 2730c Power On and OF key Jumper Ways Nokia 2730c Power On and OF key Jumper Ways

Here's the solution for a water damaged Nokia 2730c that shows charging indications but unable to turns on when pressing the power key button.

The solution below shows the line paths of the Nokia 2730c On -OFF key connections down to the keypad filter chip. You may refer to the below solution for tracing the on-of line paths and mend an alternative jumper solution on it.

Nokia 2730c Power On and OF key Jumper Ways

The solution above shows that the power on -off key is being connected to the keypad filter IC. However, there is an open test spots somewhere located near on the keypad filter chip where you can directly apply the jumper wire without replacing the keypad filter IC.
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Nokia 2730c MMC memory card problem solution Nokia 2730c MMC memory card problem solution

Here's a full Nokia 2730c  MMC memory card problem solution that can be used to fix and repair nokia 2730c microSD memory card problems such as memory card not detected or memory card corrupted.

In some cases solving the MMC problem by only replacing the MMC controller chip might not work or does not solved the problem.This solution shows the MMC memory card circuit including the memory card transceiver chip voltage supply line paths for further MMC hardware troubleshooting on Nokia 2730c.
 IF these said supply voltages were not present or being cut-off this will also result to MMC problem.

Nokia 2730c MMC memory card problem solution 

You may need to check all those corresponding supply voltage line paths before attempting to rework or replace the MMC transceiver IC.
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Nokia 2720 fold insert SIM card problem solutionNokia 2720 fold insert SIM card problem solution

Here's the Nokia 2720 fold solution for insert sim card problems. You may first ensure that the problem is on the device and not on the sim card, you only need to by a new prepaid sim cards if its already been damaged.
This solution may only help fix if the phone does not detect any kind of sim cards inserted to it.

The solution below shows the connection line paths of the of nokia 2720 fold mobile phone sim cards circuit, for easy check up and repair procedures.

Nokia 2720 fold insert SIM card problem solution

Here's how the way we  fix the Nokia 2720 fold insert sim card problem:
1. Clean the SIM card Pin connectors.
2. Check and read the SIM card supply voltage and ground pins, replace the  SMD capacitors.
3. Replace the SIM Card filter IC.
5. If all of the above doesn't solved the problem,. Reworking the LITEPLUS IC is the last option. Replace if necessary.
Thats it! Hope this help.. enjoy! ..........................................................................For More Information Continue Visit on http://gsmworldfree.blogspot.com/ More Use full Information Coming Soon. Wait For More New Information.And Post Your Comments In All Post.Email:ajcellpoint@gmail.com Continue>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Nokia 2720 fold Power ON-OFF Key Connection TracksNokia 2720 fold Power ON-OFF Key Connection Tracks

Here's the solution for Nokia 2720 fold Power On Off switch or END keypad problem,. This solution may only help fix the  2720 fold Nokia Mobile Phones, if the said device shows charging indications when the phone battery charger is plug-in but it doesn't turn the device ON when the power key is pressed.

To fix this problem, you may first check the keypad interface and keypad membrane for possible oxidation build up, clean or replace it if necessary, it might also cause the navigation and numeric keypad not to work.
Refer to this solution below if the basic procedures above doesn't fix the problem.

Nokia 2720 fold Power ON-OFF Key Connection  Tracks

Just trace the connection of the power key inner core to the capacitor and the ESD protection resistor then mend a jumper wire on it to reconnect if the said line paths is open or cut-off. The outer core is connected to ground lines, so check it as well. Replace those components also those components if necessary. If the connection paths and those components is okay, but still the 2720 fold don't turn ON, the possible problem may lies on the connection to the LITEPLUS IC. Reworking it and tracing the power key paths on the solder ball bumps C2 will only fix the problem.
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Nokia 2720f Earpiece speaker problem solutionNokia 2720f Earpiece speaker problem solutionNokia 2720f Earpiece speaker problem solution

Here's the Nokia 2720 fold solution for not working earpiece speaker (receiver) problem. This solution provides some step by step procedures on how to fix and diagnose if such ear speaker problem occurred.

In Nokia 2720 fold, the earpiece speaker is mounted on top and near the LCD screen displays. And also been connected and associated with the LCD flex ribbon cable assembly. Just refer to the solution and follow some procedures below. 

Nokia 2720f Earpiece speaker problem solution

Troubleshooting Nokia 2720 fold earpiece speaker problem:
Assuming that this problem is not cause by a firmware, so check and flash update the device first to any latest firmware version available. 
1. Check the earpiece speaker using a multimeter, replace if damaged.
2. Check the Flex ribbon cable wire for possible damaged, replace if necessary.
3. Clean, the LCD pin connector, re-solder if the solder is lifted.
4. Trace the connection line paths of the earpiece speaker from the pin connector down to the bypass capacitors., check or replace also the capacitors.
5. The earpiece audio signals is feed from the LITEPLUS IC, there is a possibility that the problem is cause by this chip, reheat or rework it then replace if necessary.

That's it! Enjoy.
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Nokia 2720 fold LCD flex ribbon cable connector Nokia 2720 fold LCD flex ribbon cable connector Nokia 2720 fold LCD flex ribbon cable connector

Here's the basic Nokia 2720 fold solution for LCD screen display problems such as the following like white empty screen, blue screen, garbled or saturated screen, blurry or blur screen  displays and others as long you can hear that the phone is still working, like you can still hear the welcome tone, the keypad tones etc.

This may work if the LCD is not damaged, cracked or broken. For beginners  you may still need an LCD screen replacements for quick and easy technique by just confirming that the problem does not lies on the LCD screen. You may also check the device firmware first., if the firmware is okay then proceed to the given solution below.

Hints for troubleshooting the Nokia 2720 Display problems this may apply on the main LCD screen and the catalina LCD:
Check the flex ribbon cable assemblies for possible damaged.
Try to replace or install a new working LCD screen panel.

Nokia 2720 fold LCD flex ribbon cable connector

 If the LCD and flexible cable confirmed that nothing wrong with it, proceed to the PCB board hardware troubleshooting below. 

The solution below shows the connection line paths of the display data signals from the filter resistors through to the LCD flex pin connector. This is only the brief solution for we start our troubleshooting here.

First check the VIO and VFLASH supply voltages, you can read about 1.8V and 2.8V on that spots of the certain pins or through the capacitors. Then check all the resistors and trace its connection down to the LCD flex connector. This may useful especially when the device suffered wet or water damaged, replace and apply jumper if necessary. If this solution doesn't work, the problem may possibly then lies on the processor IC, it is because the display data signals is feed and comes from through it. A re-hot, re-work or replacement to the CPU IC will only fix the problem.

Okay, there you have it, the basic steps procedure in troubleshooting LCD screen display problem on Nokia 2720 fold. This once again created through by request of our colleagues on our Nokia solution request box.

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Nokia 2720 hardware repair solution for not working MIC (microphone) problem

Here's the Nokia 2720 hardware repair solution for not working MIC (microphone) problem. This solution shows the MIC tracks connection line paths., and certain components that holds for 2720 fold nokia mobile phone microphone circuit.

Just refer to the solution below then locate the highlighted components on the PCB board and follow some procedures we provide.

Repair hints for Nokia 2720 fold cell phone microphone problem.
1. Check the microphone for possible damaged using a multimeter, replace if found damaged.
2. Trace its corresponding connection line paths.
3. Check/resolder or replace  all the corresponding connected components such as the capacitors and resistors.
4. If the procedures doesn't fix the problem, the possible faulty is the LITEPLUS IC, re-heat or rework it if necessary.
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Nokia 2630 Solution

Nokia 2630 Solution

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NOKIA N73 Full Solution Pack

 NOKIA N73 Full Solution Pack

NOKIA N73 Full Solution Download One Pack..........................................................................For More Information Continue Visit on http://gsmworldfree.blogspot.com/ More Use full Information Coming Soon. Wait For More New Information.And Post Your Comments In All Post.Email:ajcellpoint@gmail.com Continue>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>