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KOO SM-X620 Firmware List | SamFrew

SM-X620 KOO Firmware

Model

Region

Version

OS

Build

Changelist

Version: X620XXU4BYJ2

Build: 10/16/2025

Changelist: 32144845

Version: X620XXU4BYI7

Build: 9/25/2025

Changelist: 32144845