G981USQSAHXG1 – Galaxy S20 5G firmware

Build G981USQSAHXG1 is a security update for the Galaxy S20 5G (SM-G981U) on Android 13 (One UI 5). It first appeared on Samsung's servers on Aug 20, 2024 (method) and has reached 5 regions so far. It raises the bootloader bit from 9 to 10: once installed, the device no longer accepts firmware with bit 9 or lower, so a downgrade to G981USQS9HXE2 is blocked. Samsung still serves this file.

Model
SM-G981U
Android
Android 13
Type
Security
Bootloader bit
10
First released
Aug 20, 2024
Regions
5

Rollout timeline by region

The date each region code (CSC) first received G981USQSAHXG1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ATTUSA (AT&T)Aug 20, 2024day 0G981USQSAHXG1/G981UOYNAHXG1/G981USQSAHXG1
SPRUSA (Sprint)Aug 21, 2024+1 dayG981USQSAHXG1/G981UOYNAHXG1/G981USQSAHXG1
TMKUSA (MetroPCS)Aug 21, 2024+1 dayG981USQSAHXG1/G981UOYNAHXG1/G981USQSAHXG1
TMBUSA (T-Mobile)Aug 21, 2024+1 dayG981USQSAHXG1/G981UOYNAHXG1/G981USQSAHXG1
USCUSA (US Cellular)Aug 27, 2024+7 daysG981USQSAHXG1/G981UOYNAHXG1/G981USQSAHXG1

Download and release notes

samloader download -m SM-G981U -r ATT -v G981USQSAHXG1/G981UOYNAHXG1/G981USQSAHXG1

Samsung's release notes and security patch level for this update: SM-G981U / ATT on doc.samsungmobile.com. What each part of the build number means: decode G981USQSAHXG1.