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Samsung Galaxy Watch4 (SM-R870) Android 16 Firmware (R870XXU1JYK4) – JP | SamFrew

Home / Firmware / SM-R870 / XJP

Galaxy Watch4

SM-R870 Firmware

PDAR870XXU1JYK4

XJPAndroid 16Released 11/13/2025

Firmware details

Technical package info

Key identifiers and package metadata for this release.

PDA: R870XXU1JYK4
CSC: R870OXM1JYK4
Country: JP
Changelist: 32155332
Upload date: 11/15/2025
Package size: 3.3 GB (3537991648 bytes)
File name: XJP-R870XXU1JYK4-20251215152511.zip

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Package size3.3 GB

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