Samsung Z4 (SM-Z400F) Firmware Overview
What is the latest SM-Z400F firmware?
Z400FDDU0BRB1, released March 26, 2018 with Android 3.0.0.1. It is a feature update on bootloader binary 0. The archive holds 8 official builds across 1 region (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Z4 still getting updates?
Most likely not: there has been no new firmware since March 2018, so Android 7.1.1 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
Which Android versions did it get?
The SM-Z400F builds in the archive run Android 3.0.0.1 to 7.1.1. The earliest build we have for each version:
- Android 7.1.1: Z400FDDU0BQI1 (Aug 2017), 1 build in total
- Android 7: Z400FDDU0AQD7 (Apr 2017), 3 builds in total
- Android 6.0.1: Z400FDDU0BQG1 (Jun 2017), 1 build in total
- Android 3.0.0.1: Z400FDDU0BRB1 (Feb 2018), 2 builds in total
Can I downgrade the SM-Z400F firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 0:
- Binary 0 — since Apr 2017
All SM-Z400F firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
Z400FDDU0BRB1
Feature update
|
0 | INS | 3.0.0.1 |
2018-03-26 | Download |
|
Z400FDDU0BRB1
Feature update
|
0 | INS | 3.0.0.1 |
2018-02-28 | Download |
|
Z400FDDU0BQK3
Feature update
|
0 | INS | — |
2017-12-12 | Download |
|
Z400FDDU0BQK3
Feature update
|
0 | INS | 7 |
2017-11-15 | Download |
|
Z400FDDU0BQI1
Feature update
|
0 | INS | 7.1.1 |
2017-08-17 | Download |
|
Z400FDDU0BQH3
Feature update
|
0 | INS | 7 |
2017-08-11 | Download |
|
Z400FDDU0BQG1
Feature update
|
0 | INS | 6.0.1 |
2017-06-21 | Download |
|
Z400FDDU0AQD7
Feature update
|
0 | INS | 7 |
2017-04-25 | Download |
How to Flash SM-Z400F Firmware
Put the Samsung Z4 into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 0 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.