Freezes at ATT logo
I have an i747 and after a week of research and trail and error I was able to get back to a factory working phone. I wanted to share my findings so that the next person may get up and running a bit quicker. First off, my phone was never rooted. I was getting it ready to sell and was going to factory reset it when I realized I forgot the system password. So I installed Kies and proceeded to factor rest it there. For whatever reason the reset did not take and after several failed attempts with kies the phone began to boot in ODIN mode. I built a USB jig and was able to get back into download mode but nothing would bring it back to life. Downloading the official rom from sammobile and flashing with ODIN3.07 would fail every time. Emergency recovery in kies also failed. So here was my final approach that worked. Maybe the wrong way to do this, maybe the long way to do it.. IDK.. but it worked for me..
1) get the official Samsung files from kies (google -"does kies store firmware")
2) boot do download mode
3) flash CSC file with auto reboot and F. reset time checked
4) boot do download mode
5) flash PDA file with auto reboot and F. reset time checked
6) boot do download mode
7) flash Modem file with auto reboot and F. reset time checked
* I closed ODIN between each step, might be overkill.
** I did not flash the bootloader file
I have read that it takes a long time the first boot, and I have been waiting 15 minutes at the SAMSUNG screen but it is still pulsing so i think it is still processing. If it is still at this screen in the morning, I will let you all know but this is further than I have been in over a week.
On a side note, when it crashed I took this into AT&T they told me over the past month or so they have seen numerous people with the same issue. All from doing a factor rest in Kies. My phone was out of warranty and they barely looked at it before asking me to upgrade. I took it to BestBuy and they fixed it from booting to ODIN mode but it still locked up on the AT&T logo, so I was back to square one.