Samsung

GALAXY S4 Active i537

This is for all of the Galaxy S4 users out there that are looking for  the factory firmware for their Galaxy S4.  I have this phone and had a tough time finding the OTA 4.3 firmware files.  After found them on the XDA Developer Forum I decided to make them available here  in case others were having the same problem.

AP_I537UCUBML2_2244695_REV06_user_low_ship_MULTI_CERT.tar.md5

BL_I537UCUBML2_2244695_REV06_user_low_ship_MULTI_CERT.tar.md5

CP_I537UCUBML2_2244695_REV06_user_low_ship_MULTI_CERT.tar.md5

CSC_ATT_I537ATTBML2_2244695_REV06_user_low_ship_MULTI_CERT.tar.md5

The first file is the largest and includes the factory OTA 4.3 firmware I537UCUBML2 to include  a restore  image that is also installed.

I can only assume that the second and third files include updates, if anybody knows exactly what these files do please email me at Doug@sightsbysight.com

This fourth file appears to be some sort of AT&T update.  After flashing this file the flash screen on boot up says “CUSTOM” with the open lock?

I flashed these files using ODIN V3.09 with the options set to Auto Reboot and F.Reset Time checked and flashed via AP , BL, CP, CSC.


All I can say is that these files worked for me perfectly.  At first I flashed just the first file (AP) but then I got to wondering about the others and ended up flashing all 4 of them without any problem,  Just the same I would still caution you to use at your own risk.  I am in no way endorsing the outcome on your phone.

Root for Galaxy S4
I537 UCUBML2 4.3 AT&T
Restore to Factory default OTA build 4.3 UCUBML2

What you need to Root your Galaxy S4



 Use at your own risk, I am not endorsing the outcome on your phone in any way.