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Samsung Galaxy Watch4 (SM-R860) Android 16 firmware update R860ZCU2JZB5 – China | SamFrew

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

Galaxy Watch4

SM-R860

Release R860ZCU2JZB5

China · CHCAndroid 16Built 2/10/2026

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CHC-R860ZCU2JZB5-20260212161621.zip

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File size3.4 GB

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This file is also the factory firmware for this release.

Release information

Firmware identifiers

The software versions and region covered by this firmware update.

PDA: R860ZCU2JZB5
CSC: R860ZMK2JZB5
Country: China
Changelist: 32155332
Build date: 2/10/2026
Added to Samfrew: 2/15/2026