M446KKSS9EZE1 – Galaxy Jump3 firmware
Build M446KKSS9EZE1 is a security update for the Galaxy Jump3 (SM-M446K)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 3, 2026 (method) and has reached
1 region so far. It raises the bootloader bit from 8 to 9: once installed, the device no longer accepts firmware with bit 8 or lower, so a downgrade to M446KKSS8EZB2 is blocked. Samsung still serves this file.
- Model
- SM-M446K
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 9
- First released
- Jun 3, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received M446KKSS9EZE1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KTC | South Korea (KT) | Jun 3, 2026 | day 0 | M446KKSS9EZE1/M446KKTC9EZE1/M446KKSS9EZE1 |
Download and release notes
samloader download -m SM-M446K -r KTC -v M446KKSS9EZE1/M446KKTC9EZE1/M446KKSS9EZE1Samsung's release notes and security patch level for this update: SM-M446K / KTC on doc.samsungmobile.com. What each part of the build number means: decode M446KKSS9EZE1.