F946BTBU7HZIK – Galaxy Z Fold5 firmware
Build F946BTBU7HZIK is a feature update for the Galaxy Z Fold5 (SM-F946B)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 18, 2026 (method) and has reached
4 regions so far. It keeps bootloader bit 7, so downgrading to the previous build F946BXXU7HZIJ is still possible. Samsung still serves this file.
- Model
- SM-F946B
- Android
- Android 17
- Type
- Feature
- Bootloader bit
- 7
- First released
- Oct 18, 2026
- Regions
- 4
Not yet released in 36 regions that are still on an older build: ACR, AFG, AFR, CDR, CGU, COL, CRC, DKR, DOR, EBE, ECO, ECT, EGY, EUY and 22 more.
Rollout timeline by region
The date each region code (CSC) first received F946BTBU7HZIK, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
THL | Thailand | Oct 18, 2026 | day 0 | F946BTBU7HZIK/F946BOXT7HZIK/F946BXXU7HZIJ |
XTC | Philippines | Oct 18, 2026 | day 0 | F946BTBU7HZIK/F946BOXT7HZIK/F946BXXU7HZIJ |
XXV | Vietnam | Oct 18, 2026 | day 0 | F946BTBU7HZIK/F946BOXT7HZIK/F946BXXU7HZIJ |
XID | Indonesia | Oct 18, 2026 | day 0 | F946BTBU7HZIK/F946BOLP7HZIK/F946BXXU7HZIJ |
Download and release notes
samloader download -m SM-F946B -r THL -v F946BTBU7HZIK/F946BOXT7HZIK/F946BXXU7HZIJSamsung's release notes and security patch level for this update: SM-F946B / THL on doc.samsungmobile.com. What each part of the build number means: decode F946BTBU7HZIK.