iPhone5C charging port fault
the charging port on my iPhone 5C is faulty. The symptoms is the phone will not switch on or show any signs of life. I opened the phone, lifted the screen and I removed the battery plug. I put a voltmeter across it and this read 0V. I then connected the phone charger and switched it on then put a voltmeter across the pins in the socket that takes the battery plug and this also read 0V. From this I assumed that there is no voltage reaching the battery socket to charge the battery or switch the phone on. and this can only be that the charging port is faulty and needs replacing.
have I made the correct assessment? Is there anything else that maybe responsible for the voltage not reaching the battery socket? Phone Charger is in full working order as it charges my iPad and another iPhone.
この質問は役に立ちましたか?
6 件のコメント
Thank you. I did not connect the phone charger with the battery unplugged... I thought we should only connect it with battery plugged in. Should I try what you are suggesting?
Also , is there a way of determining whether it is the charging port or the chip?
Ali さんによる
Ok thank you. I have bought the charging port replacement. And I will fit it as soon as I get it.
But I thought maybe I can use it as a test port before doing the replacement. So which bits do I need to connect to the phone just to do the power /voltage test? Is it just the plug that goes into the socket next to the battery socket and the single long wire that fits next to the battery socket? Or do I need to connect anything else?
I thought all the other stuff is to do with speaker and headphone jack and so on....
Ali さんによる
You can just plug in the main connection of the new charging port and plug a lightning cable into it to test. Almost all components run through this one connector. If you still don't get any signs of life then either you have a defective part, or the u2 IC chip has failed and will require a logic board specialist.
I find the most common cause for the failure of this chip is the use of cheap aftermarket lightning cables.
Darcy Patko さんによる
Yep the non MFi certified cables dont have voltage protection meaning that any fluctuations in voltage going through the cable to the phone is not regulated and can damage the Tristar U2 charging IC if it goes too high.
The combination of a car charger and a non Mfi certified cable is the worst scenario as you know car batteries and their power fluctuate a lot due to the car battery getting recharged when the car is on.
Ben さんによる
As the charging port was not passing the voltage to charge the battery, I bought an iPhone battery activation/charging board. I connected the battery to it and charged the battery to almost full. . I then connected the battery to the phone. And it switched on. The phone now works. I then connected the phone charger to the charging port of the phone and it started charging the battery. So now everything on the phone is working.... so why there was no voltage at the battery socket before and why there is voltage there now?
Not that I'm complaining, but Can someone explain what is happening?
Ali さんによる
1以上のコメントを表示