AT&T Galaxy S7, S7 Edge, and S7 Active Update version - G930AUCS4API2 & G935AUCS4API2

AT&T is rolling out the September Security Patch update for Galaxy S7, Galaxy S7 Edge, and S7 edge Active. The Over-The-Air update weighs at 47 MB to which considerably one of the smallest update we have seen.  Since the update's size is way too small, we cannot expect any additional features other than the said Android Security Patch.  The September security packaged addresses more than 60 Google Security vulnerability and 9 Samsung vulnerabilities and exposures, according to Samsung mobile security bulletin.

What’s New in Update build UCS4API2:

  • Android device security enhancements for the month of September

What are the Technical details?


AT&T Galaxy S7 (SM-G930A)
  • Android version: 6.0.1
  • Security Patch Level: September 1, 2016
  • Baseband version: G930AUCS4API2
  • Kernel version: 3.18.20-8575098
  • Build number: MMB29M.G930AUCS4API2

AT&T Galaxy S7 edge (SM-G935A)
  • Android version: 6.0.1
  • Security Patch Level: September 1, 2016
  • Baseband version: G935AUCS4API2
  • Kernel version: 3.18.20-8575098
  • Build number: MMB29M.G935AUCS4API2

AT&T Galaxy S7 Active  (SM-G935A)
  • Android version: 6.0.1
  • Security Patch Level: September 1, 2016
  • Baseband version: G891AUCS2API2
  • Kernel version: 3.18.20-8737252
  • Build number: MMB29M.G891AUCS2API2

How to update the Galaxy S7 and S7 Edge via Over-The-Air:


Ensure your phone’s battery is fully charged before starting the software update.
  1. From the Home screen, tap the Menu Key > Settings > About phone > Software updates > Check for Updates.
  2. If your device finds a new software update, tap Download now. When complete, a screen will appear advising you that the new version of software is ready to be installed. Tap Install update.
  3. The device will power down and power back on. A screen will appear stating that the installation has been completed. Tap OK.
  4. You’ve successfully updated your software.

How to Update the Galaxy S7 and S7 Edge Thru Smart Switch?


The second method is a firmware update through Samsung Smart Switch for PC. You may head over to your  local Samsung support page from where you can download the Smart Switch from there, and install it in your PCs or Mac computer. Once you installed the Smart Switch, all you need is connect your Samsung Galaxy S7 or S7 Edge into your PC using the USB data cable, then simply run and follow Smart Switch on-screen’s software update instruction.

Source: AT&T Galaxy S7,  S7 edge, S7 active support pages [1][2][3], Samsung Mobile Security bulletin.