I also have this specific issue, only changed out the battery (didn't even remove the screen), and then both cameras, torch and earpiece speaker ceased working.
I have inspected ribbons/connectors and all appear fine,
Have just undergone DFU restore to no avail,
Suspected motherboard damage, but I don't know how this could have happened.
Edit: Opening the phone, the rear camera/torch works, then ceases once the phone is closed again.
Further proving my below suspicion that the front camera ribbon is the culprit.
Questa risposta è stata utile?
I have opened the phone up. Disconnected the front camera connector. Turned the phone on and the rear camera and flashlight now works.
Upon connecting the connector again I found that the rear camera and flashlight still works while the screen is not seated but upon seating the screen down they do no work again
Something must be shorting out but can't see it
da Kade Stevenson
Exactly as I found. I'll try a new assembly, but my current one looks fine.
This worked for me too when I replaced the fcam ass.