Samsung Gear S (SM-R750B) — Region ZTO

Samsung Gear S (SM-R750B) Firmware Overview

What is the latest SM-R750B firmware?

R750BVJU2BOI1, released October 14, 2016 for region ZTO with Android 6.0.1. It is a feature update on bootloader binary 2. The archive holds 7 official builds for this region.

Is the Samsung Gear S still getting updates?

Most likely not: there has been no new firmware since October 2016, so Android 6.0.1 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-R750B builds in the archive run Android 2.2.1.3 to 6.0.1. The earliest build we have for each version:

• Android 6.0.1: R750BVJU2BOI1 (Oct 2016), 1 build in total
• Android 2.2.1.5: R750BVJU1BOC2 (Mar 2015), 2 builds in total
• Android 2.2.1.4: R750BVJU2BPA1 (Jan 2016), 1 build in total
• Android 2.2.1.3: R750BVJU2BPA1 (Jan 2016), 1 build in total

Can I downgrade the SM-R750B firmware?

Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 1 to 2:

• Binary 2 — since Sep 2015
• Binary 1 — since Mar 2015

A phone already on binary 2 rejects builds with a lower binary in Odin ("SW REV CHECK FAIL"), so it can go back to an earlier Android version only if that version has a binary 2 build. How to read a build number.