Latest Samsung Galaxy A36 5G (SM-A366U) - ATT firmware

Samsung Galaxy A36 5G (SM-A366U) firmware for USA (AT&T) (ATT): 2 builds in the SamMobile archive, newest first. The latest is A366USQS4BYK3 (Android 16, built 10 November 2025). Open a build to download it, or switch region with the country selector.

SM-A3660 SM-A366B SM-A366E SM-A366N SM-A366Q SM-A366W

Model		Build date	PDA	Version
SM-A366U	USA (AT&T)	2025-11-10	A366USQS4BYK3	16
SM-A366U	USA (AT&T)	2026-07-13	A366USQS9CZG2	16

Model	Country/Carrier
SM-A366U	USA (AT&T)
Build date	PDA
2025-11-10	A366USQS4BYK3
Version
16

Model	Country/Carrier
SM-A366U	USA (AT&T)
Build date	PDA
2026-07-13	A366USQS9CZG2
Version
16

Model		Build date	PDA	Version
SM-A366U1	USA (AT&T)	2026-05-13	A366U1UEU7CZE2	16
SM-A366U1	USA (AT&T)	2026-05-28	A366U1UES8CZE3	16
SM-A366U1	USA (AT&T)	2025-11-10	A366U1UES4BYK3	16

Model	Country/Carrier
SM-A366U1	USA (AT&T)
Build date	PDA
2026-05-13	A366U1UEU7CZE2
Version
16

Model	Country/Carrier
SM-A366U1	USA (AT&T)
Build date	PDA
2026-05-28	A366U1UES8CZE3
Version
16

Model	Country/Carrier
SM-A366U1	USA (AT&T)
Build date	PDA
2025-11-10	A366U1UES4BYK3
Version
16

Latest Samsung Galaxy A36 5G (SM-A366U) - ATT firmware

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