VIDEO TUTORIAL
Step 1: From a rooted NJ4 or prior baseband ROM, flash GE51 in safestrap, being carefull to select the AT&T with SafeStrap options. Once complete, flash the ATT_OC3_modules.zip for WiFi.
Step 2: After the ROM flashes, uncheck Reboot Device Now and navigate to the Safestrap homescreen, select Reboot, and then Download.
Step 4: In download mode, open ODIN and click on the AP button and select the I337_OC3_Stock_Kernel.
Step 5: Once that is done, let the phone boot until ODIN says that the kernel flashed and take out your battery, killing the boot (don't worry, as long as ODIN says that you passed, you should be fine). Reboot into download mode (hold the volume down, home and power buttons until you see writing on the screen), reset ODIN and click the AP slot again to flash the I337_OC3_Stock_Partitions
Wait for it to boot and taste the Lollipop!
ROM DOWNLOAD: https://goo.gl/TgWTuY
ATT_OC3_modules.zip https://goo.gl/6IsWIB
I337_OC3_Stock_Kernel https://goo.gl/SlNYQG
I337_OC3_Stock_Partitions https://goo.gl/GD88WS
FULL POST:http://forum.xda-developers.com/showthread.php?p=42294395#post42294395
Step 1: From a rooted NJ4 or prior baseband ROM, flash GE51 in safestrap, being carefull to select the AT&T with SafeStrap options. Once complete, flash the ATT_OC3_modules.zip for WiFi.
Step 2: After the ROM flashes, uncheck Reboot Device Now and navigate to the Safestrap homescreen, select Reboot, and then Download.
Step 4: In download mode, open ODIN and click on the AP button and select the I337_OC3_Stock_Kernel.
Step 5: Once that is done, let the phone boot until ODIN says that the kernel flashed and take out your battery, killing the boot (don't worry, as long as ODIN says that you passed, you should be fine). Reboot into download mode (hold the volume down, home and power buttons until you see writing on the screen), reset ODIN and click the AP slot again to flash the I337_OC3_Stock_Partitions
Wait for it to boot and taste the Lollipop!
ROM DOWNLOAD: https://goo.gl/TgWTuY
ATT_OC3_modules.zip https://goo.gl/6IsWIB
I337_OC3_Stock_Kernel https://goo.gl/SlNYQG
I337_OC3_Stock_Partitions https://goo.gl/GD88WS
FULL POST:http://forum.xda-developers.com/showthread.php?p=42294395#post42294395
