Latest Samsung Galaxy A26 5G (SM-A266U1) - ACG firmware

Samsung Galaxy A26 5G (SM-A266U1) firmware for Nextech / C-Spire (ACG): 3 builds in the SamMobile archive, newest first. The latest is A266U1UES3AYG1 (Android 15, built 8 July 2025). Open a build to download it, or switch region with the country selector.

SM-A266B SM-A266M SM-A266U SM-S266V

Model		Build date	PDA	Version
SM-A266U1	Nextech / C-Spire	2025-07-08	A266U1UES3AYG1	15
SM-A266U1	Nextech / C-Spire	2026-08-20	A266U1UESACZH3	16
SM-A266U1	Nextech / C-Spire	2026-07-13	A266U1UES9CZG2	16

Model	Country/Carrier
SM-A266U1	Nextech / C-Spire
Build date	PDA
2025-07-08	A266U1UES3AYG1
Version
15

Model	Country/Carrier
SM-A266U1	Nextech / C-Spire
Build date	PDA
2026-08-20	A266U1UESACZH3
Version
16

Model	Country/Carrier
SM-A266U1	Nextech / C-Spire
Build date	PDA
2026-07-13	A266U1UES9CZG2
Version
16

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Latest Samsung Galaxy A26 5G (SM-A266U1) - ACG firmware

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