SM-G991U firmware for USC – USA (US Cellular)

64 builds for the Galaxy S21 5G in region USC. The full version string is PDA/CSC/MODEM – you need it to download a specific build.

Version (PDA/CSC/MODEM)ReleasedAndroidTypeBitFile
G991USQSJHZB1/G991UOYNJHZB1/G991USQSJHZB1Mar 25, 2026Android 15Security19on server
G991USQSJHZAA/G991UOYNJHZAA/G991USQSJHZAAFeb 3, 2026Android 15Security19on server
G991USQSIHYL1/G991UOYNIHYL1/G991USQSIHYL1Dec 23, 2025Android 15Security18on server
G991USQSHHYI1/G991UOYNHHYI1/G991USQSHHYI1Oct 6, 2025Android 15Security17on server
G991USQSGHYF2/G991UOYNGHYF2/G991USQSGHYF2Jun 30, 2025Android 15Security16on server
G991USQSFHYE2/G991UOYNFHYE2/G991USQSFHYE2Jun 10, 2025Android 15Security15on server
G991USQUEHYDA/G991UOYNEHYDA/G991USQUEHYDAMay 19, 2025Android 15Feature14on server
G991USQSEGYA5/G991UOYNEGYA5/G991USQSEGYA5Mar 3, 2025Android 14Security14on server
G991USQSEGXLB/G991UOYNEGXLB/G991USQSEGXLBJan 16, 2025Android 14Security14on server
G991USQSEGXK3/G991UOYNEGXK3/G991USQSEGXK3Dec 19, 2024Android 14Security14on server
G991USQSEGXJ4/G991UOYNEGXJ4/G991USQSEGXJ4Nov 18, 2024Android 14Security14on server
G991USQSDGXJ2/G991UOYNDGXJ2/G991USQSDGXJ2Oct 21, 2024Android 14Security13on server
G991USQSCGXH2/G991UOYNCGXH2/G991USQSCGXH2Sep 19, 2024Android 14Security12on server
G991USQUCGXGA/G991UOYNCGXGA/G991USQUCGXGASep 9, 2024Android 14Feature12on server
G991USQSCGXF3/G991UOYNCGXF3/G991USQSCGXF3Jul 19, 2024Android 14Security12on server
G991USQSBGXF1/G991UOYNBGXF1/G991USQSBGXF1Jun 18, 2024Android 14Security11on server
G991USQSBGXE2/G991UOYNBGXE2/G991USQSBGXE2May 29, 2024Android 14Security11on server
G991USQUAGXDE/G991UOYNAGXDE/G991USQUAGXDEMay 16, 2024Android 14Feature10on server
G991USQSAFXD1/G991UOYNAFXD1/G991USQSAFXD1Apr 22, 2024Android 14Security10on server
G991USQSAFXBC/G991UOYNAFXBC/G991USQSAFXBCMar 21, 2024Android 14Security10on server
G991USQSAFXAE/G991UOYNAFXAE/G991USQSAFXAEFeb 22, 2024Android 14Security10on server
G991USQS9FXA2/G991UOYN9FXA2/G991USQS9FXA2Jan 25, 2024Android 14Security9on server
G991USQS9FWL1/G991UOYN9FWL1/G991USQS9FWL1Jan 3, 2024Android 14Security9on server
G991USQU9FWK5/G991UOYN9FWK5/G991USQU9FWK5Dec 18, 2023Android 14Feature9on server
G991USQS9EWK1/G991UOYN9EWK1/G991USQS9EWK1Nov 17, 2023Android 13Security9on server
G991USQS9EWI2/G991UOYN9EWI2/G991USQS9EWI2Oct 10, 2023Android 13Security9on server
G991USQS9EWI1/G991UOYN9EWI1/G991USQS9EWI1Sep 27, 2023Android 13Security9on server
G991USQU8EWH6/G991UOYN8EWH6/G991USQU8EWH6Sep 12, 2023Android 13Feature8on server
G991USQS8EWH1/G991UOYN8EWH1/G991USQS8EWH1Aug 21, 2023Android 13Security8on server
G991USQS8EWF1/G991UOYN8EWF1/G991USQS8EWF1Jul 25, 2023Android 13Security8on server
G991USQU7EWE5/G991UOYN7EWE5/G991USQU7EWE5Jun 23, 2023Android 13Feature7on server
G991USQS6EWD4/G991UOYN6EWD4/G991USQS6EWD4May 19, 2023Android 13Security6on server
G991USQU6EWD1/G991UOYN6EWD1/G991USQU6EWD1May 1, 2023Android 13Feature6on server
G991USQU5EWAI/G991UOYN5EWAI/G991USQU5EWAIFeb 27, 2023Android 13Feature5on server
G991USQU5DWA8/G991UOYN5DWA8/G991USQU5DWA8Jan 30, 2023Android 13Feature5on server
G991USQS5DVL3/G991UOYN5DVL3/G991USQS5DVL3Dec 21, 2022Android 13Security5on server
G991USQS5DVK7/G991UOYN5DVK7/G991USQS5DVK7Dec 6, 2022Android 13Security5on server
G991USQU5DVK3/G991UOYN5DVK3/G991USQU5DVK3Nov 21, 2022Android 13Feature5on server
G991USQS5CVI8/G991UOYN5CVI8/G991USQS5CVI8Oct 5, 2022Android 12Security5on server
G991USQS5CVHB/G991UOYN5CVHB/G991USQS5CVHBSep 20, 2022Android 12Security5on server
G991USQU5CVH8/G991UOYN5CVH8/G991USQU5CVH8Sep 14, 2022Android 12Feature5on server
G991USQS5CVGA/G991UOYN5CVGA/G991USQS5CVGAAug 16, 2022Android 12Security5on server
G991USQU5CVG9/G991UOYN5CVG9/G991USQU5CVG9Aug 4, 2022Android 12Feature5on server
G991USQU5CVF1/G991UOYN5CVF1/G991USQU5CVF1Jun 27, 2022Android 12Feature5on server
G991USQU5CVDB/G991UOYN5CVDB/G991USQU5CVDBMay 12, 2022Android 12Feature5on server
G991USQS5CVCB/G991UOYN5CVCB/G991USQS5CVCBApr 11, 2022Android 12Security5on server
G991USQU5CVC4/G991UOYN5CVC4/G991USQU5CVC4Mar 30, 2022Android 12Feature5on server
G991USQS5BVA6/G991UOYN5BVA6/G991USQS5BVA6Mar 7, 2022Android 12Security5on server
G991USQU4BUK7/G991UOYN4BUK7/G991USQU4BUK7Feb 17, 2022Android 12Feature4on server
G991USQU5BULJ/G991UOYN5BULJ/G991USQU5BULJFeb 17, 2022Android 12Feature5on server
G991USQS4BUKK/G991UOYN4BUKK/G991USQS4BUKKJan 13, 2022Android 12Security4on server
G991USQU4BUKF/G991UOYN4BUKF/G991USQU4BUKFDec 2, 2021Android 12Feature4on server
G991USQS4AUIN/G991UOYN4AUIN/G991USQS4AUINOct 21, 2021Android 11Security4on server
G991USQU4AUI7/G991UOYN4AUI7/G991USQU4AUI7Sep 27, 2021Android 11Feature4on server
G991USQU4AUGQ/G991UOYN4AUGQ/G991USQU4AUGQAug 23, 2021Android 11Feature4on server
G991USQU4AUGE/G991UOYN4AUGE/G991USQU4AUGEAug 12, 2021Android 11Feature4on server
G991USQS4AUFD/G991UOYN4AUFD/G991USQS4AUFDJul 20, 2021Android 11Security4on server
G991USQU4AUF5/G991UOYN4AUF5/G991USQU4AUF5Jul 8, 2021Android 11Feature4on server
G991USQU3AUDD/G991UOYN3AUDD/G991USQU3AUDDMay 17, 2021Android 11Feature3on server
G991USQU2AUC8/G991UOYN2AUC8/G991USQU2AUC8Apr 12, 2021Android 11Feature2on server
G991USQU2AUB5/G991UOYN2AUB5/G991USQU2AUB5Mar 5, 2021Android 11Feature2on server
G991USQU1AUAG/G991UOYN1AUAG/G991USQU1AUAGFeb 8, 2021Android 11Feature1on server
G991USQU1AUA3/G991UOYN1AUA3/G991USQU1AUA3Jan 26, 2021Android 11Feature1on server
G991USQU1ATLF/G991UOYN1ATLF/G991USQU1ATLFJan 23, 2021Android 11Feature1on server

Download the latest USC build

samloader download -m SM-G991U -r USC -v G991USQSJHZB1/G991UOYNJHZB1/G991USQSJHZB1

Changelog and security patch level

Samsung's official release notes for SM-G991U in USC, including the security patch level of each update: doc.samsungmobile.com/SM-G991U/USC. We don't show the patch level ourselves (why).

See how to download Samsung firmware and how to flash it. Back to the SM-G991U overview. All models with USC: Samsung CSC USC.