Firmware Direct Download Pricing News App

© 2015, 2026 Samfrew.com

Disclaimer: Flashing Samsung firmware is a risky process that can potentially brick your device. By flashing firmware, you are modifying the software on your device, and if anything goes wrong, your device may become unusable.

[email protected] Privacy Policy Terms of Service

Samsung Galaxy Watch4 (SM-R870) Android 16 Firmware (R870XXS2JZE1) – KOREA | SamFrew

Home / Firmware / SM-R870 / KOO

Galaxy Watch4

SM-R870 Firmware

Latest firmware

PDAR870XXS2JZE1

KOOAndroid 16Released 5/21/2026

Firmware details

Technical package info

Key identifiers and package metadata for this release.

PDA: R870XXS2JZE1
CSC: R870OXM2JZE1
Country: KOREA
Changelist: 33003255
Upload date: 6/15/2026
Package size: 3.3 GB (3540413417 bytes)
File name: KOO-R870XXS2JZE1-20260615130941.zip

Download

Choose your download path

Fast download uses your premium allowance. Standard download works without premium bandwidth.

Package size3.3 GB

Checking accessLoading...