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Samsung Galaxy Watch4 (SM-R860) Android 16 firmware update R860ZCS2JZG3 – China | SamFrew

Home / Devices / Galaxy Watch4 / SM-R860 / CHC

Galaxy Watch4

SM-R860

Firmware R860ZCS2JZG3

China · CHCAndroid 16Built Jul 27, 2026

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File size3.5 GB

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Release information

Firmware identifiers

The software versions and region covered by this firmware update.

PDA: R860ZCS2JZG3
CSC: R860CHC2JZG3
Country: China
Changelist: 33003255
Build date: Jul 27, 2026
Upload date: Aug 20, 2026
File name: SM-R860_4_20260820102550_x2wktf9kia_fac.zip

Inside the firmware

Software details

Read from the build properties and kernel of this firmware.

One UI Watch: 8.0
Android: 16 (API 36)
Security patch: Aug 5, 2026
Bootloader: 2
Chipset: Exynos W920
Codename: freshbs
Launched with: Android 11
Apps: 32-bit only
Build number: BP2A.250325.020.R860ZCS2JZG3
Kernel: 5.15.180-33003255-abR860ZCS2JZG3