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Galaxy Watch6
R945FXXU2CZB6
BTUAndroid 16Released 2/12/2026Firmware details
Key identifiers and package metadata for this release.
R945FXXU2CZB6R945FOXA2CZB6 UK & IREUK & IRECSC code BTU29 carriers in 7 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.
323420NWIDNW01286323420NWIDNW00604323420NWIDNW01796323420NWIDNW01797323420NWIDNW01625BT OnePhoneMVNO23408NWIDNW00172EE23433NWIDNW00425EE23430NWIDNW00425EE23430NWIDNW00176EE23430NWIDNW00249LebaraMVNO23487NWIDNW00675LycamobileMVNO23426NWIDNW00694O2 (UK)23402NWIDNW00928O2 (UK)23410NWIDNW00928O2 (UK)23410NWIDNW00886O2 (UK)23410NWIDNW02107O2 (UK)23410NWIDNW01280O2 (UK)23410NWIDNW00491O2 (UK)23410NWIDNW01206Sky MobileMVNO23457NWIDNW01140spusuMVNO23440NWIDNW02168TeleenaMVNO23427NWIDNW02221TruphoneMVNO23425NWIDNW02207Virgin Mobile23438NWIDNW01433Vodafone UK23415NWIDNW01512Vodafone UK23415NWIDNW01205Vodafone UK23415NWIDNW01206
Base20620NWIDNW01433Proximus20601NWIDNW01433Proximus20601NWIDNW01439Proximus20601NWIDNW01287
GibTel26601NWIDNW02188
JT23450NWIDNW00639Sure Mobile23455NWIDNW01177
327202NWIDNW00900327205NWIDNW00005Eir27203NWIDNW01600iD MobileMVNO27216NWIDNW00581Sky MobileMVNO27225NWIDNW02362Tesco MobileMVNO27211NWIDNW01287Virgin MobileMVNO27215NWIDNW01439Vodafone27201NWIDNW01489
Pronto GSM23458NWIDNW00713Pronto GSM23458NWIDNW00705
Tele224007NWIDNW01140Tele224007NWIDNW02168Tele224007NWIDNW02362