Repair Firmware Samsung Galaxy S4 Mini AT&T SGH-i257

Repair Firmware Samsung Galaxy S4 Mini AT&T SGH-i257

Below is a stock firmware from official samsung for android device Samsung Galaxy S4 Mini AT&T with model number SGH-i257   that can be used to repair firmware which is damaged by incorrectly installing stock rom, custom rom, recovery.img, boot.img, rooting, installing tweaks, modify build.prop, deleting some important parts on the system partition or you feel that your device is infected by virus.

Remember! the mentioned problem will never be resolved you do factory reset in stock recovery mode except reapply the previous partition or example: If you installing wrong Custom rom or Xposed installer, then the thing that will happen is Samsung Galaxy S4 Mini AT&T SGH-i257   will get stuck in the logo and you need to remove Xposed Installer already installed in Samsung Galaxy S4 Mini AT&T SGH-i257   to restore it, then the solution is you need to install Xposed Remover Package so that Samsung Galaxy S4 Mini AT&T SGH-i257   can be normal again, this will be very easy to solve if TWRP recovery has been installed in your Samsung Galaxy S4 Mini AT&T SGH-i257   and if you have Samsung Galaxy S4 Mini AT&T SGH-i257   Stock firmware backup.

 

But in other cases, sometimes the Samsung Galaxy S4 Mini AT&T SGH-i257  , the black screen, can not get into recovery mode and always go to Odin Download mode. Accordingly, here you need to updating full firmware from official Samsung Galaxy S4 Mini AT&T SGH-i257   using Odin Flash files

 

Below is a list of Stock rom / firmware updates for Samsung Galaxy S4 Mini AT&T SGH-i257   with easy guide how to flash firmware.

 

Notes:

• If you have problem on IMEI ( unknown imei ) you can try how to repair / Fix IMEI Samsung Galaxy S4 Mini AT&T SGH-i257   from -> here
• If you want to download TWRP recovery for Samsung Galaxy S4 Mini AT&T SGH-i257   -> free download here
• Known your Samsung Galaxy S4 Mini AT&T model by Settings.apps >About Phones or at /System folder /build.prop using rootexplorer.apk “No root required” for example on the part ro.product.model=SGH-i257   or ro.build.product:SGH-i257   ( this is your Samsung Galaxy S4 Mini AT&T model numbel )
• If you do not find the latest firmware version for your Samsung Galaxy S4 Mini AT&T SGH-i257   model, please flash any rom version, after your device returns to normal, you will find the latest updates for your device which can be installed automatically or manually via OTA Updater.apk “Without PC” or KIES “With PC “
• The firmware below is the original rom from the official samsung KIES or without being modified.
• Maybe the firmware below can not installed on your devices, because at DOWNLOAD MODE Secure dowload: Enable or Secure=on and Odin Flash file say FAILED!, you need turn off this option.Please back to homescreen, Open Settings apps and Tap 10x Kernel section to enable developer mode and turn off Samsung Reactivation Lock and check USB Debug, then retry Flashing Samsung Samsung Galaxy S4 Mini AT&T SGH-i257  
• If the previous Samsung Galaxy S4 Mini AT&T SGH-i257   you have connected to samsung / Gougle cloud, maybe you need to enter the correct Username / Email and password to enter the menu. Read guides how to unlock / Baypass Samsung Samsung Galaxy S4 Mini AT&T SGH-i257   Google Account Verification FRP if your lost password. has been factory reset -> From here

 

Disclaimer: Fordroid.com is not responsible if your devices is hardbrick or total dead after flashing the rom, we always try to present accurate content here, but the risk is still your own. So, please be careful in selecting firmware.

Before you Updates / Downgrade / Unbricking Samsung Galaxy S4 Mini AT&T SGH-i257   using Official Stock Firmware learn about this:
PIT = Partition configuration files of your Samsung Galaxy S4 Mini AT&T SGH-i257
AP = PDA = HOME , if you unpacking .tar archives you can find Boot.img , System.img , Recovery.img and more.
CP = MODEM = Base on network like EFS, IMEI or Baseband
BL = BOOTLOADER , using this file if your Samsung Galaxy S4 Mini AT&T SGH-i257   is locked bootloader, OEM or FRP
CSC = REGION = Country

Tutorial with video: Watch here

 

Download Samsung Galaxy S4 Mini AT&T SGH-i257   Stock Firmware For Odin Flash
Contry	Region	Model	Type	Android OS	Firmware Version	Download Link	Flashing Guides	Security Patch Level
USA (AT&T)	ATT	SGH-I257	Stock rom	4.4.2 Kitkat	I257UCU2BNG4	Download	Read	29-Aug-14