Random reboot (kernel panic) and wont charge battery

Hi,

after discovered the minijack connector broken on my iPhone SE, I’ve ordered a new lighting/headphones cable to fix it.

Once I’ve installed the new connector board, I’ve found that the phone was unable to reveal and charge up the battery (it shows 0-1% charge level on startup and correct charge level after few seconds) and also randomly reboots after one or two minutes of use.

I’ve found one kernel panic log file for each random reboot, with similar content to this: https://discussions.apple.com/thread/795...

After some research online, I thought it was a battery problem (which was already quite worn before I’ve opened the phone, even if it had never given similar problems), so I’ve ordered a new battery.

This evening I’ve installed the new battery, but I’ve found the exact same issue.

I’ve also tried to swap in the old lighting/phone connectors board and also leave it unplugged. I’ve tried also to unplug front and rear camera, touchid… no matter what I try to do in order to isolate and find the problem. The exact same behaviour happens.

This evening, after backing up the last photos (it’s impossible also to backup the whole phone via iTunes, because the phone resets in kernel panic after few second from the backup start), I’ve tried also to do an Update via DFU, and a full restore, in order to exclude software problems.

Nothing, same issue still here.

The absurd thing is that every single function of the phone seems to work without any problems (including all the replaced connectors and all the devices that are served by that connection).

I have been unable to isolate the problem. Don’t know what I can try to do now to recover it. It’s totally unusable.

Do you have any idea of what happened and how to (try to) fix it?

Thanks in advance