Motherboard replacement procedure
I have a 16GB Galaxy SIII GT-I9300 international.
A few days ago it started repeatedly rebooting. The reboot frequency increased until it would not reboot at at all.
I tried a number of fix suggestions. None worked.
None of the software/firmware fixes will work because the phone simply won't switch on.
I believe the problem is with the motherboard memory. The phone is a month out of warranty so I don't think Samsung will fix it for free. Besides, I opened the case.
I'd like to know exactly how I can can make sure I order the right replacement board and and what other steps I need to take to get phone working. Fortunately I have a full SD card backup