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Samsung Galaxy Watch4 (SM-R870) Android 16 firmware update R870ZCU2JZB5 – China | SamFrew

Home / Firmware / SM-R870 / CHC

Galaxy Watch4

SM-R870

Release R870ZCU2JZB5

China · CHCAndroid 16Built 2/10/2026

Release information

Firmware identifiers

The software versions and region covered by this firmware update.

PDA: R870ZCU2JZB5
CSC: R870CHC2JZB5
Modem / CP: R870ZCU2JZB5
Country: China
Changelist: 32155332
Build date: 2/10/2026
Added to Samfrew: 2/15/2026

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