[AT&T Samsung Galaxy S II SGH-I777] Dranakin:
The jig I bought is the one from MobileTechVideos.com (http://mobiletechvideos.mybigcommerce.com/samsung-galaxy-s-ii-at-t/), as recommended in this thread: http://xdaforums.com/showthread.php?t=1281569

I have followed exactly what has been recommended to victor3063 throughout this thread, but then again, his at least reaches the lock screen before rebooting itself. Mine simply loops the boot constantly no matter what I do.

The instructions I used for the USB jig is:

- turned off phone

- insert jig

- wait until green text says download mode / don't turn off phone (something like that)

- unplugged jig

- held power button down until phone restarted

Sorry, here are the solutions I tried, as outlined in this thread. I removed my microSD card and SIM card just in case. Also, I followed these instructions first: ENSURE KIES IS NOT RUNNING IN SYSTEM TRAY OR TASK MANAGER. KILL THE WHOLE PROCESSS TREE IF YOU FIND IT BEFORE DOING ANY ROOTING!

1. Flash Entropy512's Return/Unbrick to Stock, Kernel + non-rooted system package using Odin3 v1.85,

Tried it with the PDA + modem package at the same time, PDA without modem, and vice versa. No dice.

2. After flashing to stock, I can sometimes do the SGH-I777_ClockworkMod-Recovery_5.0.2.3. From there, I sometimes can access CWM, wich I then proceed to "Wipe Dalvik Cache", "Wipe Cache Partition", and "Wipe Data/Factory Reset". Usually after I reboot after this, I get same boot loop at the logo, but then it says "deleting cryption meta data" when I try to access the recovery menu.

I've tried flashing back to stock and then to CWM, and the only selecting "Wipe Data/Factory Reset" and then rebooting, but that doesn't help either.

3. I've tried: flash PIT (I777UCKH7.pit), PDA (PDA.tar) and PHONE(UCKH7_modem.tar) at the same time, with REPARTITION, AUTO REBOOT, and RESET TIME checked in Odin.

After doing so, this will usually allow me to reach the stock recovery/e3. If I select "Wipe Data/Factory Reset" from there and reboot, I will still be in a boot loop. Then if I try to get back into the recovery menu, I get "deleting cryption meta data".

4. I followed this:

XXKI3

Android 2.3.5

This original (unmodified) Wipe Package with new bootloader has: PDA: XXKI3| Modem/phone: XXKI3| CSC: OXAKI3

Download: http://www.multiupload.com/NJV6PR87Y3

These packages have the new bootloader removed and repacked with the old ones so you can safely reset the binary counter with a Jig. :)

I still get a boot loop.

5. If I flash the i9100 ROM, I can enter download mode either by holding down + power, or using the jig that started it all. If I then flash Entropy512's Return/Unbrick to Stock, Kernel + non-rooted system package, I still get a bootloop.

6. I did this: I found this 100% stock i9100 rom with all four parts needed for a complete Odin flash.

PIT select u1_02_20110310_emmc_EXT4.pit

PDA select CODE_I9100XXKI3_CL577579_REV02_user_low_ship.tar.m d5

PHONE select MODEM_I9100XXKI3_REV_02_CL1062028.tar.md5

CSC select GT-I9100-CSC-MULTI-OXAKI3.tar.md5

Same boot loop issue.

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I have also NOT tried:

If you've already flashed a full package from elsewhere and cannot reset your binary counter using the Jig just flash this package in the PDA or Bootloader (Yes both will work) section of Odin to replace the bootloaders and then you can reset the counter:http://www.multiupload.com/LQQBRQVJUD

I read messing with bootloaders is fatal. So, I won't try that unless someone specifically mentions that as a solution.

When I run the executable, it runs as a 7zip file and extracts GT-I9100_OXA_I9100XXKI3_I9100XXKI3_I9100OXAKI3.tar? Running the executable doesn't open Odin, as I presume it should.