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Galaxy Watch4 LTE (40 mm)
R865FXXU1JYL6
SERAndroid 16Released 1/6/2026Firmware details
Key identifiers and package metadata for this release.
R865FXXU1JYL6R865FOXX1JYL6 RussiaRussiaCSC code SER18 carriers in 3 countries
CSC stands for Consumer Software Customization (sometimes "Country Sales Code"). Samsung firmware ships with carrier- and region-specific configs; the networks listed below are what this CSC was built to support out of the box.
Beeline25099NWIDNW00099Gazprombank MobileMVNO25045NWIDNW02066KUGSM25013NWIDNW00694Letai25027NWIDNW01209MegaFon25002NWIDNW00728MegaFon25002NWIDNW01563MOTIV25035NWIDNW00765MTS25001NWIDNW00823Next Mobile25047NWIDNW02265SberMobileMVNO25050NWIDNW01926T-MobileMVNO25062NWIDNW01630t225020NWIDNW02371t225020NWIDNW01926t225020NWIDNW02058VTB MobileMVNO25026NWIDNW01978WireFireMVNO25059NWIDNW01542YotaMVNO25011NWIDNW01563
A125701NWIDNW00119life:)25704NWIDNW00684MTS25702NWIDNW00827
Tele224007NWIDNW01926