Galaxy Watch FE
Firmware R866USQU1BYK6
United States · XAAAndroid 16Built Nov 19, 2025Release information
The software versions and region covered by this firmware update.
R866USQU1BYK6R866UOYM1BYK6 United StatesInside the firmware
Read from the build properties and kernel of this firmware.
lucky7usBP2A.250325.020.R866USQU1BYK65.15.180-32155332-abR866USQU1BYK6United States · CSC XAA · 5 carriers in 2 countries
CSC is Samsung's region and carrier customization. The networks below are included in this release.
AT&T310410NWIDNW02171AT&T311180NWIDNW02171AT&T310950NWIDNW02171AT&T310410NWIDNW02172AT&T311180NWIDNW02172AT&T310950NWIDNW02172AT&T310410NWIDNW02088AT&T311180NWIDNW02088AT&T310150NWIDNW00057
AT&T310280NWIDNW02171AT&T310280NWIDNW02172