Ipod would not turn on black screen

 Here we troubleshoot apple iPhone would not turn on, suddenly stop working only black screen shown  and there is non-responsive LCD screen and no display on LCD screen.

 

        There are several reasons why iPhone would not turn on. So first consider the points which are required to start iPhone.

 

For understanding purpose following 6 point are require to turn on iPhone.

 

1. IPhone power supply- failure of power is the main reason. Power supply is either battery. And it requires power cord and working power port to charge battery. If this are not working then iPhone won’t start up.

 

2. IPod display screen –If there is a problem at display LCD. You will face non-responsive screen.

 

3. IPod software firmware working fine. If firmware errors occur, even though your iPhone can boot and stuck at apple logo.

 

4. IPod’s all other hardware working fine. Then problem at printed circuit board may cause iPod stop working.

5. This problem occurs due to software problem or hardware problem that we will find during iPhone troubleshooting.

 

6. Proximity sensor wrong functioning can cause iPod display screen black.

 

7. Use crash log to troubleshoot your iPod problem. Whenever any application crash or hardware failure occur it create log file on iPhone. When you synchronize your iPod with iTunes. It transfer log file iTunes automatically.  You can find crash log file here.

 

 for windows xp     c:\ document and setting- your log in username folder - apple computer folder - logs – crash reporter- your apple device name folder - for multiple device attached, then each device has separate log file generated.

For windows 10 and 7    type %appdata% . This will open a folder. Click on roaming- apple computer folder- logs folder -crash reporter-mobile device- folder file with your apple device name.

         Now use xcode or any apple developed crash reporter. As in crash log file there are many memory addresses are written which human cannot understand but with the help of crash reporter like xcode, it convert memory addresses to  human understandable name and it also omit user’s personal data to keep privacy. Here is more information on ipad won’t turn on bong noise problem troubleshooting.

 

1. Now start troubleshooting for power supply failure

Battery, power cable and power port.

IPHONE BATTERY TROUBLESHOOTING.

If battery is not working than iPod never start up and iPod acts as dead. So first check battery is fully charged. Keep iPod turn off, and connect power supply to battery for more than 20 min. Then start your iPod. If iPod steel doesn’t start than connect USB cable of your iPod to computer and try to charge iPod via USB.

If still iPod is not working, then use cotton and clean power port. Where you connect power cable. Also open back cover and remove the battery. Here is the guide for how to replace apple ipod battery. Clean the connecting point of battery, also clean point where battery connects to the iPod internal circuit PCB. It may possible that due to humidity and dust the connecting point got corroded and insulate the connection point between iPod and battery and due to that iPod become dead.

 

 

2. Software level troubleshooting for iPod would not start up : 

Force restart iPod and if needed reset and restore iPod.

           To force restart keep pressing and holding sleep and home button for 8 to 1o second then slide to turn off.  This will not display on screen but you assume after 10 second that it is slide to turn off iPod. And then again press and hold sleep and home button until apple logo appear.

       Now to find whether it is hardware problem or software problem. The best way is to connect iPod to computer. Now if iPod is recognized by computer iTunes then or at least you get message on computer that new external USB hardware found. That means iPod is working fine just problem with iPod LCD screen.

Now I also suggest restoring iPod from iTunes. 

 

3. IPad LCD screen troubleshooting:

iPod sleep from your hand and dropped on floor. It result in iPod LCD screen connector cable loosen from its hardware slot. To fix this open back cover and just above battery slot there is an iPod LCD screen cable connected. Here is the detail of how to replace apple ipod screen. Press the LCD display cable to its slot firmly and iPod black screen problem will be removed.

       If this cannot solve the problem. Then iPod LCD display has 3 cable connector. Find the sensor connector and remove the sensor connector from logic board. This will solve iPod screen non responsive problem.

Check iPod display filter and solder of that filter. If soldering get dry then fix it.

 Also check display regulatory IC.

4. IPhone Proximity sensor troubleshooting:

Function of the proximity sensor is to disable iPhone screen when you are talking on phone. So that when screen touch your ear, It cannot tap any icon on screen. Otherwise it can cause problem. But if this sensor create some abrupt function, then black screen problem occur. As I know proximity sensor are capacitive, inductive or magnetic. So be specific for replacing your sensor or better to purchase from apple authorize store.

5. IPod’s other hardware failure or problem on PCB logic board:

 Now if iPod power related hardware like battery, power port and power cable are all fine. Display related all hardwares are fine. IPod softwares are also working fine, no issue with proximity sensor than possible problem is at other logic board. To troubleshoot that you need a great knowledge of electronic circuit board and requires all necessary equipment.

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