N986NKSSAHYH1 – Galaxy Note20 Ultra 5G firmware
Build N986NKSSAHYH1 is a security update for the Galaxy Note20 Ultra 5G (SM-N986N)
on Android 13 (One UI 5). It first appeared on Samsung's servers on Aug 28, 2025 (method) and has reached
4 regions so far. It raises the bootloader bit from 9 to 10: once installed, the device no longer accepts firmware with bit 9 or lower, so a downgrade to N986NKSS9HYG5 is blocked. Samsung still serves this file.
- Model
- SM-N986N
- Android
- Android 13
- Type
- Security
- Bootloader bit
- 10
- First released
- Aug 28, 2025
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received N986NKSSAHYH1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KOO | South Korea | Aug 28, 2025 | day 0 | N986NKSSAHYH1/N986NOKRAHYH1/N986NKSSAHYH1 |
KTC | South Korea (KT) | Aug 28, 2025 | day 0 | N986NKSSAHYH1/N986NOKRAHYH1/N986NKSSAHYH1 |
LUC | South Korea (LG U+) | Aug 28, 2025 | day 0 | N986NKSSAHYH1/N986NOKRAHYH1/N986NKSSAHYH1 |
SKC | South Korea (SKT) | Aug 28, 2025 | day 0 | N986NKSSAHYH1/N986NOKRAHYH1/N986NKSSAHYH1 |
Download and release notes
samloader download -m SM-N986N -r KOO -v N986NKSSAHYH1/N986NOKRAHYH1/N986NKSSAHYH1Samsung's release notes and security patch level for this update: SM-N986N / KOO on doc.samsungmobile.com. What each part of the build number means: decode N986NKSSAHYH1.