Galaxy S21 5G
Firmware G991USQSIHYL1
United States · DSHAndroid 15Built Dec 5, 2025Release information
The software versions and region covered by this firmware update.
G991USQSIHYL1G991UOYNIHYL1 United StatesInside the firmware
Read from the build properties and kernel of this firmware.
o1qAP3A.240905.015.A2.G991USQSIHYL15.4.274-qgki-30957850-abG991USQSIHYL1United 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