N981USQSCHYD1 – Galaxy Note20 5G firmware
Build N981USQSCHYD1 is a security update for the Galaxy Note20 5G (SM-N981U)
on Android 13 (One UI 5). It first appeared on Samsung's servers on Apr 24, 2025 (method) and has reached
6 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 N981USQSBHXL1 is blocked. Samsung still serves this file.
- Model
- SM-N981U
- Android
- Android 13
- Type
- Security
- Bootloader bit
- 12
- First released
- Apr 24, 2025
- Regions
- 6
Rollout timeline by region
The date each region code (CSC) first received N981USQSCHYD1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
VZW | USA (Verizon) | Apr 24, 2025 | day 0 | N981USQSCHYD1/N981UOYNCHYD1/N981USQSCHYD1 |
ATT | USA (AT&T) | Apr 25, 2025 | +1 day | N981USQSCHYD1/N981UOYNCHYD1/N981USQSCHYD1 |
CCT | USA (Comcast) | Apr 27, 2025 | +3 days | N981USQSCHYD1/N981UOYNCHYD1/N981USQSCHYD1 |
SPR | USA (Sprint) | Apr 27, 2025 | +3 days | N981USQSCHYD1/N981UOYNCHYD1/N981USQSCHYD1 |
TMB | USA (T-Mobile) | Apr 27, 2025 | +3 days | N981USQSCHYD1/N981UOYNCHYD1/N981USQSCHYD1 |
USC | USA (US Cellular) | May 9, 2025 | +15 days | N981USQSCHYD1/N981UOYNCHYD1/N981USQSCHYD1 |
Download and release notes
samloader download -m SM-N981U -r VZW -v N981USQSCHYD1/N981UOYNCHYD1/N981USQSCHYD1Samsung's release notes and security patch level for this update: SM-N981U / VZW on doc.samsungmobile.com. What each part of the build number means: decode N981USQSCHYD1.