G981U1UESCHXL1 – Galaxy S20 5G firmware
Build G981U1UESCHXL1 is a security update for the Galaxy S20 5G (SM-G981U1)
on Android 13 (One UI 5). It first appeared on Samsung's servers on Jan 20, 2025 (method) and has reached
16 regions so far. It raises the bootloader bit from 11 to 12: once installed, the device no longer accepts firmware with bit 11 or lower, so a downgrade to G981U1UESBHXJ1 is blocked. Samsung still serves this file.
- Model
- SM-G981U1
- Android
- Android 13
- Type
- Security
- Bootloader bit
- 12
- First released
- Jan 20, 2025
- Regions
- 16
Rollout timeline by region
The date each region code (CSC) first received G981U1UESCHXL1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
ACG | USA (C Spire) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
AIO | USA (Cricket) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
ATT | USA (AT&T) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
BST | USA (Boost) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
CCT | USA (Comcast) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
DSH | USA | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
LRA | USA (Bluegrass) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
SPR | USA (Sprint) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
TFN | USA (TracFone) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
TMB | USA (T-Mobile) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
TMK | USA (MetroPCS) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
USC | USA (US Cellular) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
VZW | USA (Verizon) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
XAA | USA (unlocked) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
XAR | USA (Cellular South) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
XAS | USA (Sprint) | Jan 20, 2025 | day 0 | G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1 |
Download and release notes
samloader download -m SM-G981U1 -r XAA -v G981U1UESCHXL1/G981U1OYMCHXL1/G981U1UESCHXL1Samsung's release notes and security patch level for this update: SM-G981U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode G981U1UESCHXL1.