![]() You can also try installing a known good battery (not necessarily new) that is already holding a charge. That would hardly be visible to the naked eye though. Your friend could also have shorted something when disconnecting the old battery, if using a screwdriver for example to lift the battery connector. If you want to be "extra sure," you can examine around the battery and dock connector to see if you see anything missing or damaged. It is a controller chip responsible for USB communication and charging. If the phone still doesn't connect via USB, you probably have a bad U2 chip. No need to replace it at this point, just overlay it the existing one and plug it instead of the old one and test with a known good cable and charger - or computer. ![]() Next step is to try a known good one instead. I opened up the phone and disconnected, and reconnected the battery cable but no luck either.Ĭan a crappy battery cause the phone not to recognize the cord? OR is there a deeper issue like aqi said, first you must check that your charging dock is clean, not corroded. I used a wooden toothpick to pick out some lint in the port, and still nothing.Ī few things I did was try using multiple known good OEM lightning charger cords and still no dice. In this case, when plugged into a power source the lightning symbol is still there as if it doesn't recognize that it is plugged in. Normally, when you plug it into a power source, the lightning symbol goes away and it just shows the battery. ![]() ![]() When I hit the power button, the flashing red battery is there with a lightning cord symbol on the bottom. Can the battery itself cause the phone NOT to recognize that the phone is plugged in? He recently replaced the battery (not from ifixit probably ebay). Also itunes is not recognizing it on the computer. I have my friends iPhone 5 that is not recognizing it is plugged in to power. ![]()
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