G988NKSS6IXJ1 – Galaxy S20 UItra 5G firmware
Build G988NKSS6IXJ1 is a security update for the Galaxy S20 UItra 5G (SM-G988N)
on Android 13 (One UI 5). It first appeared on Samsung's servers on Oct 27, 2024 (method) and has reached
4 regions so far. It raises the bootloader bit from 5 to 6: once installed, the device no longer accepts firmware with bit 5 or lower, so a downgrade to G988NKSS5IXH1 is blocked. Samsung still serves this file.
- Model
- SM-G988N
- Android
- Android 13
- Type
- Security
- Bootloader bit
- 6
- First released
- Oct 27, 2024
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received G988NKSS6IXJ1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KOO | South Korea | Oct 27, 2024 | day 0 | G988NKSS6IXJ1/G988NOKR6IXJ1/G988NKSS6IXJ1 |
KTC | South Korea (KT) | Oct 27, 2024 | day 0 | G988NKSS6IXJ1/G988NOKR6IXJ1/G988NKSS6IXJ1 |
LUC | South Korea (LG U+) | Oct 27, 2024 | day 0 | G988NKSS6IXJ1/G988NOKR6IXJ1/G988NKSS6IXJ1 |
SKC | South Korea (SKT) | Oct 27, 2024 | day 0 | G988NKSS6IXJ1/G988NOKR6IXJ1/G988NKSS6IXJ1 |
Download and release notes
samloader download -m SM-G988N -r KOO -v G988NKSS6IXJ1/G988NOKR6IXJ1/G988NKSS6IXJ1Samsung's release notes and security patch level for this update: SM-G988N / KOO on doc.samsungmobile.com. What each part of the build number means: decode G988NKSS6IXJ1.