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Samsung Galaxy S21 5G (SM-G991B) Android 15 Firmware (G991BXXSJHZC2) – UK | SamFrew

Home / Firmware / SM-G991B / BTE

Galaxy S21 5G

SM-G991B Firmware

Latest firmware

PDAG991BXXSJHZC2

BTEAndroid 15Released 3/9/2026

Firmware details

Technical package info

Key identifiers and package metadata for this release.

PDA: G991BXXSJHZC2
CSC: G991BOXMJHZC2
Country: UK
Changelist: 30959686
Upload date: 3/24/2026
Package size: 8.4 GB (9064413840 bytes)
File name: BTE-G991BXXSJHZC2-20260324134741.zip

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Package size8.4 GB

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BTE CSC Breakdown

Network ID

NW00249

Network Name

BT

Network Country

United Kingdom

Network Bands

GSM 1800 / UMTS 2100 / LTE 800 / LTE 1800 / LTE 2100 / LTE 2600 / 5G 700 / 5G 1800 / 5G 2100 / 5G 2600 / / 5G 3500