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Samsung Galaxy S21 5G (SM-G991U1) Android 15 Firmware (G991U1UESJHZB1) – USA | SamFrew

Home / Firmware / SM-G991U1 / AIO

Galaxy S21 5G

SM-G991U1 Firmware

Latest firmware

PDAG991U1UESJHZB1

AIOAndroid 15Released 2/24/2026

Firmware details

Technical package info

Key identifiers and package metadata for this release.

PDA: G991U1UESJHZB1
CSC: G991U1OYMJHZB1
Country: USA
Changelist: 30959686
Upload date: 3/23/2026
Package size: 7.6 GB (8155547984 bytes)
File name: AIO-G991U1UESJHZB1-20260323145717.zip

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Package size7.6 GB

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AIO CSC Breakdown

Network ID

NW00156

Network Name

Anritsu

Network Country

Network Bands

any

Network ID

NW00057

Network Name

AT&T Mobility

Network Country

United States of America

Network Bands

GSM 850 / UMTS 850 / UMTS 1900