Samsung Z4 SM-Z400Y updates & firmware
This page tracks every software update Samsung's update servers list for the Samsung Samsung Z4 (SM-Z400Y). The latest stable build is Z400YXXU0BRG1 (–, feature update), first released on Jul 8, 2018. Samsung has published 4 stable builds for this model since May 11, 2017: 0 security and 4 feature updates. The current bootloader (binary) version is 0. A device on bit 0 only accepts firmware with bit 0 or higher – see downgrading and the bootloader bit.
Rollout: build Z400YXXU0BRG1 (–) is live in 2 of 4 regions, first released on Jul 8, 2018 in XFA (South Africa). Still waiting: AFR, XFE.
- Latest build
Z400YXXU0BRG1- Released
- Jul 8, 2018
- Android
- –
- Bootloader bit
- 0
- Regions
- 4
- Stable builds
- 4
Update policy
The Samsung Z4 no longer receives updates: the last firmware appeared on Jul 8, 2018, on –.
Compare all models: Samsung update policy by model.
Latest firmware by region (CSC)
Samsung builds firmware per region code (CSC). Pick the code that matches your device – it is shown under Settings › About phone › Software information › Service provider software version. Follow a code for its complete history.
| CSC | Region | Latest build | Android | Released | Builds |
|---|---|---|---|---|---|
AFR | Africa | Z400YXXU0AQD6 | – | Jul 18, 2017 | 1 |
XFA | South Africa | Z400YXXU0BRG1 | – | Jul 8, 2018 | 2 |
XFE | South Africa | Z400YXXU0BQG2 | – | Aug 20, 2017 | 1 |
XFV | South Africa (Vodacom) | Z400YXXU0BRG1 | – | Jul 8, 2018 | 3 |
Firmware history (4 builds)
Every stable build (PDA version) Samsung has published for the SM-Z400Y, newest first. “Released” is the earliest date the build appeared on Samsung's servers in any region (how dates work). “pulled” means Samsung no longer serves the file for that build, usually because newer builds replaced it (details).
| Build (PDA) | Released | Android | Type | Bit | Regions | File |
|---|---|---|---|---|---|---|
Z400YXXU0BRG1 | Jul 8, 2018 | – | Feature | 0 | 2 | on server |
Z400YXXU0BRF1 | Jun 14, 2018 | – | Feature | 0 | 1 | on server |
Z400YXXU0BQG2 | Aug 20, 2017 | – | Feature | 0 | 1 | on server |
Z400YXXU0AQD6 | May 11, 2017 | – | Feature | 0 | 3 | on server |
How to download SM-Z400Y firmware
We do not host firmware. Download it directly from Samsung's servers with a free open-source tool, for example samloader:
samloader download -m SM-Z400Y -r XFVReplace XFV with your region code. Step-by-step instructions, including a graphical alternative:
How to download Samsung firmware.
Changelog and security patch level
Samsung publishes the release notes for each update, including the security patch level, on its own site. They are listed per region – for example SM-Z400Y / XFV release notes on doc.samsungmobile.com. Each region page here links to the notes for that code. We don't show the patch level ourselves because Samsung's update servers don't report it (why).