Latest Samsung Galaxy S26 Ultra (SM-S948U1) - ACG firmware

Samsung Galaxy S26 Ultra (SM-S948U1) firmware for Nextech / C-Spire (ACG): 3 builds in the SamMobile archive, newest first. The latest is S948U1UES4BZIG (Android 17, built 29 September 2026). Open a build to download it, or switch region with the country selector.

SC-53G SC-57G SCG37 SM-S9480 SM-S948B SM-S948C SM-S948N SM-S948Q SM-S948U SM-S948W SM-S948Z

Model		Build date	PDA	Version
SM-S948U1	Nextech / C-Spire	2026-09-29	S948U1UES4BZIG	17
SM-S948U1	Nextech / C-Spire	2026-09-19	S948U1UEU4BZID	17
SM-S948U1	Nextech / C-Spire	2026-04-21	S948U1UEU2AZDE	16

Model	Country/Carrier
SM-S948U1	Nextech / C-Spire
Build date	PDA
2026-09-29	S948U1UES4BZIG
Version
17

Model	Country/Carrier
SM-S948U1	Nextech / C-Spire
Build date	PDA
2026-09-19	S948U1UEU4BZID
Version
17

Model	Country/Carrier
SM-S948U1	Nextech / C-Spire
Build date	PDA
2026-04-21	S948U1UEU2AZDE
Version
16

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Latest Samsung Galaxy S26 Ultra (SM-S948U1) - ACG firmware

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