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

Home / Firmware / SM-G991U1 / PCT

Galaxy S21 5G

SM-G991U1 Firmware

Latest firmware

PDAG991U1UESJHZB1

PCTAndroid 15Released 2/24/2026

Firmware details

Technical package info

Key identifiers and package metadata for this release.

PDA: G991U1UESJHZB1
CSC: G991U1OWAJHZB1
Country: Puerto Rico
Changelist: 30959686
Upload date: 3/23/2026
Package size: 7.5 GB (8076114912 bytes)
File name: PCT-G991U1UESJHZB1-20260324044629.zip

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Package size7.5 GB

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PCT CSC Breakdown

Network ID

NW00314

Network Name

Claro PR

Network Country

Puerto Rico

Network Bands

GSM 850 / GSM 1900 / UMTS 850 / LTE 700 / LTE 1700