Galaxy S21 5G
Firmware G991USQSJHZB1
United States · DSHAndroid 15Built Feb 24, 2026Release information
The software versions and region covered by this firmware update.
G991USQSJHZB1G991UOYNJHZB1 United StatesInside the firmware
Read from the build properties and kernel of this firmware.
o1qAP3A.240905.015.A2.G991USQSJHZB15.4.274-qgki-30957850-abG991USQSJHZB1United States · CSC DSH · 3 carriers in 1 country
CSC is Samsung's region and carrier customization. The networks below are included in this release.
T-Mobile310240NWIDNW02086T-Mobile310240NWIDNW0208599999NWIDNW0208600101NWIDNW00156