G988USQSCHYC1 – Galaxy S20 Ultra 5G firmware
Build G988USQSCHYC1 is a security update for the Galaxy S20 Ultra 5G (SM-G988U)
on Android 13 (One UI 5). It first appeared on Samsung's servers on Apr 1, 2025 (method) and has reached
6 regions so far. It keeps bootloader bit 12, so downgrading to the previous build G988USQSCHXL1 is still possible. Samsung still serves this file.
- Model
- SM-G988U
- Android
- Android 13
- Type
- Security
- Bootloader bit
- 12
- First released
- Apr 1, 2025
- Regions
- 6
Rollout timeline by region
The date each region code (CSC) first received G988USQSCHYC1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
VZW | USA (Verizon) | Apr 1, 2025 | day 0 | G988USQSCHYC1/G988UOYNCHYC1/G988USQSCHYC1 |
SPR | USA (Sprint) | Apr 2, 2025 | +1 day | G988USQSCHYC1/G988UOYNCHYC1/G988USQSCHYC1 |
TMB | USA (T-Mobile) | Apr 2, 2025 | +1 day | G988USQSCHYC1/G988UOYNCHYC1/G988USQSCHYC1 |
ATT | USA (AT&T) | Apr 2, 2025 | +1 day | G988USQSCHYC1/G988UOYNCHYC1/G988USQSCHYC1 |
CCT | USA (Comcast) | Apr 2, 2025 | +1 day | G988USQSCHYC1/G988UOYNCHYC1/G988USQSCHYC1 |
USC | USA (US Cellular) | Apr 8, 2025 | +7 days | G988USQSCHYC1/G988UOYNCHYC1/G988USQSCHYC1 |
Download and release notes
samloader download -m SM-G988U -r VZW -v G988USQSCHYC1/G988UOYNCHYC1/G988USQSCHYC1Samsung's release notes and security patch level for this update: SM-G988U / VZW on doc.samsungmobile.com. What each part of the build number means: decode G988USQSCHYC1.