I seem to have the same problem as many other Galaxy users with the Boot Loop. I cannot access my phone:
I am not able to load the Stock ROM or factory reset it, nor erase any data.
It is stuck at the Samsung Galaxy S3 GT screen and then turns off.
If I go to "download" or "volume up mode" (I am sorry I don't know the name) it turns off.
I have already tried:
- pulling the battery out
- waiting until the battery has no juice
- connecting to PC to try to update the firmware
Does anybody know what should be done?