I9515LUBU1BQF1 – GALAXY S4 firmware

Build I9515LUBU1BQF1 is a feature update for the GALAXY S4 (GT-I9515L) on Android 5. It first appeared on Samsung's servers on Jul 27, 2017 (method) and has reached 1 region so far. It keeps bootloader bit 1, so downgrading to the previous build I9515LUBS1AQE1 is still possible. Samsung still serves this file.

Model
GT-I9515L
Android
Android 5
Type
Feature
Bootloader bit
1
First released
Jul 27, 2017
Regions
1

Not yet released in 11 regions that are still on an older build: CHO, CHT, COM, COO, PET, TCE, TTT, ZTA, ZTM, ZTO, ZVV.

Rollout timeline by region

The date each region code (CSC) first received I9515LUBU1BQF1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ZTRBrazil (Oi)Jul 27, 2017day 0I9515LUBU1BQF1/I9515LZTR1BQF1/I9515LUBU1BQF1

Download and release notes

samloader download -m GT-I9515L -r ZTR -v I9515LUBU1BQF1/I9515LZTR1BQF1/I9515LUBU1BQF1

Samsung's release notes and security patch level for this update: GT-I9515L / ZTR on doc.samsungmobile.com. What each part of the build number means: decode I9515LUBU1BQF1.