M405FDDU2CUK1 – Galaxy M40 firmware
Build M405FDDU2CUK1 is a feature update for the Galaxy M40 (SM-M405F)
on Android 11 (One UI 3). It first appeared on Samsung's servers on Dec 13, 2021 (method) and has reached
3 regions so far. It keeps bootloader bit 2, so downgrading to the previous build M405FDDU2CUD2 is still possible. Samsung still serves this file.
- Model
- SM-M405F
- Android
- Android 11
- Type
- Feature
- Bootloader bit
- 2
- First released
- Dec 13, 2021
- Regions
- 3
Rollout timeline by region
The date each region code (CSC) first received M405FDDU2CUK1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
BKD | Bangladesh | Dec 13, 2021 | day 0 | M405FDDU2CUK1/M405FODM2CUK1/M405FDDU2CUJ1 |
INS | India | Dec 13, 2021 | day 0 | M405FDDU2CUK1/M405FODM2CUK1/M405FDDU2CUJ1 |
NPB | Nepal | Dec 28, 2021 | +15 days | M405FDDU2CUK1/M405FODM2CUK1/M405FDDU2CUJ1 |
Download and release notes
samloader download -m SM-M405F -r INS -v M405FDDU2CUK1/M405FODM2CUK1/M405FDDU2CUJ1Samsung's release notes and security patch level for this update: SM-M405F / INS on doc.samsungmobile.com. What each part of the build number means: decode M405FDDU2CUK1.