Completely locked phone?
I have a new Galaxy S3 SGH-I747 with 4.3 that I got from AT&T's insurance company to replace my old one. I can't access it from adb for more than about 30 seconds at a time before it exits the session. I loaded TWRP, but it can't mount any devices and won't see the SD card. I tried CF-auto-Root (and blew my warranty), but CF-auto-root can't root it and can't reload the stock recovery so I can't reset the phone.
Is there something new out there can so lock down a phone that you can't access any of it's functionality?
How do I bring it back to some normal state where TWRP or CF-auto-root will work if I can't install a zipped file from TWRP? Is there an Odin version of the recovery?
Thanks in advance.