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Galaxy S4 CM13 and Marshmallow update release details
AT&T Galaxy S4 and S4 Active receive updates to fix Stagefright bug, build no. I337UCUGOC4 and I537UCUCOC7 respectively
How To Factory Reset or Hard Reset Samsung Galaxy S4
Root AT&T Galaxy S4 SGH-I337 on VRUEMK2 Android 4.3 Update Firmware
Back to Stock: Bring AT&T Galaxy S4 SGH-I337 to Android 4.3 Jelly Bean with Official Firmware VRUEMK2
Download / Install The AT&T Galaxy S4 SGH-I337 Android 4.4.2 KitKat OTA Update [I337UCUFNB1]
PhilZ Touch Advanced CWM Recovery For Samsung Galaxy S4, S4 LTE, Google Edition, AT&T, T-Mobile, Verizon, Sprint, US Cellular, Cricket, Metro PCS, C-Spire, China Mobile and Canadian Variants
Leaked Android 4.4.2 KitKat Firmware for AT&T Galaxy S4 SGH-I337 (I337UCUFMLD)
How to Downgrade AT&T Galaxy S4 SGH-I337 to Android 4.2.2 Jelly Bean [Back To Stock]
Get AT&T Galaxy S4 Android 4.4 KitKat via VanirAOSP ROM (4.4.2) with Heavy Metal theme, Halo 2.0, PIE, Appbar, etc. Features
Install Octo_Kat to get KitKat Update on AT&T Galaxy S4
AT&T Galaxy S4 SGH-I337 gets KitKat Update (Android 4.4.2) via OmniROM too, Build KOT49H
Latest TWRP Recovery for AT&T Galaxy S4 (Android 4.4 Compatible!)
Latest ClockworkMod (CWM) Recovery for AT&T Galaxy S4 (Android 4.4 Compatible!)
[How To] Get the Android 4.4 KitKat on AT&T Galaxy S4 SGH-I337
I337UCUEMJ6: Android 4.3 Update leaked for AT&T Galaxy S4, SGH-I337!
TWRP Recovery for AT&T Samsung Galaxy S4: Downloads and Step-by-step Guide
AT&T Samsung Galaxy S4 Specs and Model Number Slipped Out Already!
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