Samsung Galaxy S5 Active (AT&T) SM-G870A Firmware Overview
What is the latest SM-G870A firmware?
G870AUCS2DQD1, released May 8, 2017 . It is a security update on bootloader binary 2. The archive holds 2 official builds across 1 region (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy S5 Active (AT&T) still getting updates?
Most likely not: there has been no new firmware since May 2017. The final builds below are still the best choice for a clean reinstall.
Can I downgrade the SM-G870A firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 1 to 2:
- Binary 2 — since Nov 2016
- Binary 1 — since May 2014
A phone already on binary 2 rejects builds with a lower binary in Odin ("SW REV CHECK FAIL"), so it can go back to an earlier Android version only if that version has a binary 2 build. How to read a build number.
All SM-G870A firmware builds
Older SM-G870A Builds (Archive)
1 earlier build from the samdb.org catalogue. They are not in the download list above; the link searches for the build on the partner site.
| Build / PDA | Bit | Month | Regions (CSC) | |
|---|---|---|---|---|
| G870AUCU1ANE4 | 1 | May 2014 | ATT | Find |
How to Flash SM-G870A Firmware
Put the Samsung Galaxy S5 Active (AT&T) into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 2 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.