for Samsung Galaxy S8/S8 Plus

Update: Full stock firmware and ADB sideload OTA updates are now available for Samsung Galaxy S8/S8+ with build numbers G950USQU1AQGL and G955USQU1AQGL. Samsung never ceases, it surprises when it comes to firmware updates, it seems. In one of our previous post, we said about keeping an eye on August firmware updates (Security Patch) from US based carriers like AT&T, T-Mobile, Sprint, Verizon. And Presto !! AT&T has rolled out the August 2017 security update for Galaxy S8/S8 Plus with model numbers SM-G950F/G955F. The update comes loaded with some exciting new features as well as regular fixes. Major new features of the August 2017 security update for Galaxy S8/S8 Plus includes introduces Google’s daydream VR support. And also introduces one tap show/hide navigation bar.

The update is rolling out with firmware version G950USQU1AQGL and G955USQU1AQGL for the Galaxy S8 and Galaxy S8+ respectively. And the update weighs in at around 500MB for both devices. The August 2017 security update by AT&T is rolling as OTA (Over The Air) update. So it might take some time to reach all the US based users. But you can also simultaneously download the firmware from Samsung Servers. We will guide you on the same.

Firmware Changelog and downloads for AT&T Galaxy S8/S8 Plus

Come let’s have a look at what changes does the latest AT&T August 2017 Security Update for Galaxy S8/S8Plus brings.

AT&T August 2017 Security Update Changelog for Galaxy S8

AT&T August 2017 Security Update for Galaxy S8/S8Plus

AT&T August 2017 Security Update Changelog for Galaxy S8 Plus

AT&T August 2017 Security Update Changelog for Galaxy S8

Most Noteworthy Features of AT&T August 2017 Security Update

Some of the noteworthy features in the latest update for Galaxy S8/S8 Plus includes

  • Fixes the CVEs(Common Vulnerabilities and Exposure)
  • Repairs the known bugs.
  • Daydream VR support.
  • Navigation bar auto hide.
  • Wireless Priority Service.
  • device stability enhancement.
  • Advanced Messaging

How to update AT&T Galaxy S8/S8+ to August 2017 Security Firmware Update?

As the full stock firmware files isn’t available, you can’t update manually using Odin tool. The best option is to update to previous firmware and then apply OAT update. Usual way includes downloading the OTA Update as it becomes available for your device.

You may try:

Download the firmware for G950USQU1AQGL and G955USQU1AQGL directly from the Samsung servers.

Download full stock firmware update Odin files:

S8 + OTA updates to August security patch:

Install the following via ADB sideload methods.

G955USQU1AQGL-to-U1BQIA – not released yet
Mirror: G955USQU1AQGL-to-U1BQIA.zip

Released updates:

G955USQS1AQG1-to-U1AQGL – August 21 2017 with August 1st security
G955USQS1AQF7-to-S1AQG1 – July 1 security released on July 20.
G955USQU1AQEF-to-S1AQF7 – June 22 2017
G955USQU1AQD9-to-U1AQDE – May 9 2017
G955USQU1AQC9-to-U1AQDE – May 9 2017
G955USQU1AQC9-to-U1AQD9 – April 21 2017

Read: How to install OTA update on AT&T S8 device?

How to install stock firmware via odin?

Step 1: Make sure your AT&T S8/S8+ device is running the previous July 2017 security patch update. You can Download Full stock firmware files for AT&T Galaxy S8/S8 Plus update from here.

Step 2: Alternatively, you can download Latest Firmware update for Samsung devices directly from Samsung servers. For installation, you will need the Latest Odin tool for PC and the Samsung Firmware tool. See how to flash stock firmware or restore the device to complete stock using Odin Tool.

Step 3: Once updated to the previous firmware update, Go to device Settings > Software Updates option.

Step 4: First check for updates if they are available. Click the Download manually option.

Step 5: Wait until you receive an OTA notification.

Step 6: Then simply follow on-screen instructions.

You may also like to root AT&T Galaxy S8/S8+ on Snapdragon variants.

That’s it. Enjoy your latest August 2017 security patch on AT&T Galaxy S8.


Swayam Prakash Avatar


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