I use the repair guide to replace the ear piece, as it no longer produce sound.
After its done, it does not start up. I notice when i plug in the phone, the back is hot.
I got a used iphone 12 mini motherboard off of ebay, but when i put it in it also does not start, the back is also hot. I have giving up on this phone, but just want to know what could have cause it to not start up. Thanks.