Z400YXXU0BRF1 – Samsung Z4 firmware

Build Z400YXXU0BRF1 is a feature update for the Samsung Z4 (SM-Z400Y) on –. It first appeared on Samsung's servers on Jun 14, 2018 (method) and has reached 1 region so far. It keeps bootloader bit 0, so downgrading to the previous build Z400YXXU0BQG2 is still possible. Samsung still serves this file.

Model
SM-Z400Y
Android
–
Type
Feature
Bootloader bit
0
First released
Jun 14, 2018
Regions
1

Rollout timeline by region

The date each region code (CSC) first received Z400YXXU0BRF1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
XFVSouth Africa (Vodacom)Jun 14, 2018day 0Z400YXXU0BRF1/Z400YOJV0BRF1/Z400YXXU0AQK1

Download and release notes

samloader download -m SM-Z400Y -r XFV -v Z400YXXU0BRF1/Z400YOJV0BRF1/Z400YXXU0AQK1

Samsung's release notes and security patch level for this update: SM-Z400Y / XFV on doc.samsungmobile.com. What each part of the build number means: decode Z400YXXU0BRF1.