Samsung SM-G611S Firmware Overview
What is the latest SM-G611S firmware?
G611SKSU3CUD2, released May 24, 2021 with Android 9. It is a feature update on bootloader binary 3. The archive holds 8 official builds across 1 region (CSC).
Is the Samsung SM-G611S still getting updates?
Most likely not: there has been no new firmware since May 2021, so Android 9 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
Which Android versions did it get?
The SM-G611S builds in the archive run Android 8.1 to 9. The earliest build we have for each version:
- Android 9: G611SKSU1CSD6 (Apr 2019), 6 builds in total
- Android 8.1: G611SKSU1BRK6 (Nov 2018), 1 build in total
Can I downgrade the SM-G611S 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 3:
- Binary 3 — since Apr 2021
- Binary 2 — since Jan 2020
- Binary 1 — since Nov 2018
A phone already on binary 3 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 3 build. How to read a build number.
All SM-G611S firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
G611SKSU3CUD2
Feature update
|
3 | SKC | 9 |
2021-05-24 | Download |
|
G611SKSS2CTJ1
Security update
|
2 | SKC | 9 |
2020-11-19 | Download |
|
G611SKSU2CTA1
Feature update
|
2 | SKC | 9 |
2020-02-18 | Download |
|
G611SKSU2CTA1
Feature update
|
2 | SKC | 9 |
2020-01-16 | Download |
|
G611SKSU1CSD6
Feature update
|
1 | SKC | 9 |
2019-04-26 | Download |
|
G611SKSU1CSD6
Feature update
|
1 | SKC | 9 |
2019-04-25 | Download |
|
G611SKSU1BRK6
Feature update
|
1 | SKC | — |
2018-11-20 | Download |
|
G611SKSU1BRK6
Feature update
|
1 | SKC | 8.1 |
2018-11-19 | Download |
How to Flash SM-G611S Firmware
Put the Samsung SM-G611S 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 3 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.