iPhone 7 no charge; Will power on, but boot loops
This one has me a little stumped..
I have an iPhone 7 that I got in a job lot. It’s cosmetically “perfect” and everything appears OK. It was missing the bottom screws which told me it had been opened. The battery wasn’t connected inside. I connected the charger (via amp meter), it draws 0 mA. Just on a whim, I tested with a known good charge port assembly, same result.
I connected it to my desk PSU with a 7 squid, and it appeared to boot just fine (no screen connected). So I connected a screen and prompted it to boot again. Apple logo and perfectly reasonable readings from the PSU, but it just keeps looping.
I have inspected the board under the microscope (though haven’t removed the shields yet) and there are no signs of anything wrong. Liquid indicators are crisp and white, no corrosion anywhere, nothing.
I have no indications of a short, as the mA’s are well within reason, so my guess was a sensor that kept it looping, but I can’t get access to the kernel logs :(
crwdns2934109:0crwdne2934109:0