AT&T Samsung Galaxy S7 SM-G930A Firmware Flash File (Stock ROM)

This page has the download links and a step-by-step guide to flash the stock firmware on the Samsung SM-G930A, the AT&T Galaxy S7, using Samsung’s Odin flash tool. You will find several builds below, from Marshmallow through the final Oreo release.

Flashing the stock ROM is how you put the phone back on official firmware. It is the usual fix for a lot of software trouble: a soft brick or boot loop, broken Wi-Fi or Bluetooth, or general lag and stutter after a bad update. It also returns the phone to a clean, unrooted state.

Samsung Galaxy S7 SM-G930A (AT&T) firmware flash files

Android 8.0 Oreo is the last official software for the G930A, so the Oreo builds below are as current as the stock ROM gets. The older Nougat and Marshmallow builds are here for rollback, keeping anti-rollback in mind (see the FAQ).

The first entry (G930AUCUBATA1) is a combination, or engineering, binary rather than a normal release build. Most users want one of the regular ATT release firmwares below it.

Steps to flash firmware on the Galaxy S7 SM-G930A

Before the steps, run through the requirements below.

Pre-requirements

• This guide is for the Samsung Galaxy S7 SM-G930A (AT&T) only.
• You need a Windows PC or laptop and a USB cable.
• Charge the phone to at least 50%.
• Download and install the latest Samsung USB drivers on your PC.
• Install Odin on your PC.
• Take a backup of your device first.

Installation guide

1. Download the SM-G930A firmware and extract the zip. A full release firmware gives you separate BL, AP, CP, and CSC files.
2. Open Odin on your PC.
3. Load each file into its matching slot: BL, AP, CP, and the CSC file in the CSC slot. Using the regular CSC file does a clean flash and wipes the phone. If you want to keep your data, load the HOME_CSC file instead where one is included.
4. Boot the phone into Download Mode, then connect it to the PC.
5. Odin should light up the COM port once the phone is detected.
6. Click Start to flash the firmware.
7. When it finishes, Odin shows a PASS message and the phone reboots. The first boot can take several minutes.

Follow Complete Guidelines

You can also follow along with our video guide.

Video Tutorial To Install Firmware

Frequently Asked Questions

What is the latest firmware for the G930A?

Android 8.0 Oreo. Oreo is the final official software for the AT&T Galaxy S7, so there is no newer stock build. For a newer Android version you would need a custom ROM like the ones in the Also Read links above.

Which build should I pick?

For normal use, pick one of the Oreo (8.0) release builds, not the combination binary at the top of the table. The Nougat and Marshmallow builds are only useful if you specifically need to go back to an older version and anti-rollback allows it.

Will flashing erase my data?

It depends on the CSC file. The standard CSC file wipes the phone during the flash. If the firmware includes a HOME_CSC file and you use that instead, it can keep your data. Back up either way before you start.

Does flashing stock firmware trip KNOX?

No. This is official, Samsung-signed firmware, so flashing it with Odin does not trip the KNOX counter the way unlocking the bootloader or flashing a custom ROM does.

Can I downgrade to an older build?

Not always. Samsung uses anti-rollback protection on the bootloader, so you cannot drop below the bootloader revision your phone is already on. Flashing a build with an older bootloader than your current one can fail or brick the device, so check your current bootloader version first.

Does this work on other Galaxy S7 models?

No. This firmware is only for the SM-G930A. Other variants such as the G930F, G930U, G930V, G930T, and G930W8 use their own firmware, and flashing the wrong one can brick the phone.

Conclusion

Flashing the stock G930A firmware with Odin is the reliable way to get an AT&T Galaxy S7 back to a clean, working state after software problems. Pick an Oreo release build, match it to your exact model, back up first, and let the flash finish on its own. If you run into trouble, drop a comment below and tell us what Odin reports.