G988USQSDHYG2 – Galaxy S20 Ultra 5G firmware
Build G988USQSDHYG2 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 Jul 30, 2025 (method) and has reached
2 regions so far. It raises the bootloader bit from 12 to 13: once installed, the device no longer accepts firmware with bit 12 or lower, so a downgrade to G988USQSCHYC1 is blocked. Samsung still serves this file.
- Model
- SM-G988U
- Android
- Android 13
- Type
- Security
- Bootloader bit
- 13
- First released
- Jul 30, 2025
- Regions
- 2
Not yet released in 6 regions that are still on an older build: ATT, BST, SPR, TMB, USC, XAS.
Rollout timeline by region
The date each region code (CSC) first received G988USQSDHYG2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
VZW | USA (Verizon) | Jul 30, 2025 | day 0 | G988USQSDHYG2/G988UOYNDHYG2/G988USQSDHYG2 |
CCT | USA (Comcast) | Jul 31, 2025 | +1 day | G988USQSDHYG2/G988UOYNDHYG2/G988USQSDHYG2 |
Download and release notes
samloader download -m SM-G988U -r VZW -v G988USQSDHYG2/G988UOYNDHYG2/G988USQSDHYG2Samsung'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 G988USQSDHYG2.