Galaxy S21 Ultra 5G (SM-G998B) Firmware - Samsung Firmware Monitor

Galaxy S21 Ultra 5G

Device Information

Model	SM-G998B
Last Update	2025-05-01 00:00:00

Firmware Summary

This device has 24 firmware versions across multiple regions.

Last firmware check: 2025-05-01 00:00:00

Available Firmware Versions

Latest

2025-05-27 112 regions BL: SF Date: 2025.05 Version: 7.1

Available in these regions:

THAILAND

VIETNAM

PHILIPPINES

MALAYSIA

PHILIPPINES

NEPAL

INDIA

BANGLADESH

FRANCE

SRI LANKA

AUSTRIA

KAZAKHSTAN

SLOVAKIA

IRELAND

CAUCASUS

UNITED KINGDOM

CROATIA

SPAIN

SERBIA MONTENEGRO

AUSTRIA

GREECE

ROMANIA

SERBIA MONTENEGRO

SWITZERLAND

CROATIA

POLAND

SLOVENIA

NETHERLANDS

POLAND

CZECH

UNITED KINGDOM

SLOVAKIA

PORTUGAL

SLOVENIA

SPAIN

MACEDONIA

GERMANY

RUSSIA

SPAIN

IRELAND

UKRAINE

ROMANIA

HUNGARY

ITALY

FRANCE

NETHERLANDS

BALTICK

HUNGARY

UNITED KINGDOM

ITALY

SLOVENIA

UK & IRE

BULGARIA

NETHERLANDS

ROMANIA

AUSTRIA

PORTUGAL

LUXEMBURG

SEAD SERBIA

PORTUGAL

IRELAND

GREECE

IRELAND

ALBANIA

NORDIC

CZECH

POLAND

ITALY

SWEDEN

FRANCE

SLOVAKIA

ITALY

UNITED KINGDOM

AUSTRIA

SWITZERLAND

ROMANIA

GERMANY

SPAIN

GREECE

GERMANY

AUSTRALIA

KENYA

TUNISIA

TURKEY

NIGERIA

SAUDI ARABIA

AUSTRALIA

LEBANON

SOUTH AFRICA

SINGAPORE (STARHUB)

UNITED ARAB EMIRATES

SOUTH AFRICA

PAKISTAN

AFGHANISTAN

UNITED ARAB EMIRATES

SINGAPORE

AUSTRALIA

MOROCCO

UNITED ARAB EMIRATES

SINGAPORE

EGYPT

SAUDI ARABIA

ISRAEL

NEW ZEALAND

AUSTRALIA

SOUTH AFRICA

Latest

2025-05-27 1 regions BL: SF Date: 2025.05 Version: 7.1

Available in these regions:

INDONESIA

Latest

2025-05-01 33 regions BL: SF Date: 2025.05 Version: 7.1

Available in these regions:

ECUADOR

CHILE

COSTA RICA

COLOMBIA

DOMINICAN REP.

ARGENTINA URUGUAY

PERU

ARGENTINA

PERU

ARGENTINA

GUATEMALA

PANAMA

URUGUAY

MEXICO

COLOMBIA

PARAGUAY

ECUADOR

CHILE

BRAZIL

MEXICO

BRAZIL

MEXICO

PARAGUAY

BOLIVIA

Latest

2025-05-01 3 regions BL: SF Date: 2025.05 Version: 7.1

Available in these regions:

CHILE

ARGENTINA

DOMINICA

Latest

2025-05-01 3 regions BL: SF Date: 2025.05 Version: 7.1

Available in these regions:

CHILE

ECUADOR

PANAMA

Latest

2025-05-01 1 regions BL: SF Date: 2025.05 Version: 7.1

Available in these regions:

FRANCE

2025-04-01 33 regions BL: UE Date: 2025.04 Version: 7.5

Available in these regions:

ECUADOR

COSTA RICA

COLOMBIA

DOMINICAN REP.

CHILE

COLOMBIA

GUATEMALA

ARGENTINA URUGUAY

ARGENTINA

ECUADOR

COLOMBIA

PERU

URUGUAY

PERU

CHILE

PARAGUAY

COLOMBIA

BOLIVIA

PANAMA

MEXICO

BRAZIL

2025-04-01 3 regions BL: UE Date: 2025.04 Version: 7.5

Available in these regions:

DOMINICA

ARGENTINA

CHILE

2025-04-01 1 regions BL: UE Date: 2025.04 Version: 7.5

Available in these regions:

FRANCE

2025-04-01 112 regions BL: UE Date: 2025.04 Version: 7.5

Available in these regions:

NEW ZEALAND

AUSTRALIA

SOUTH AFRICA

AUSTRALIA

SOUTH AFRICA

AUSTRALIA

NETHERLANDS

SPAIN

SWITZERLAND

SLOVENIA

FRANCE

POLAND

IRELAND

ITALY

SLOVENIA

TUNISIA

UNITED ARAB EMIRATES

MOROCCO

UNITED ARAB EMIRATES

PAKISTAN

SAUDI ARABIA

SOUTH AFRICA

EGYPT

NIGERIA

AFGHANISTAN

LEBANON

KENYA

ISRAEL

UNITED ARAB EMIRATES

TURKEY

SAUDI ARABIA

UNITED ARAB EMIRATES

PORTUGAL

UNITED KINGDOM

FRANCE

PORTUGAL

GREECE

FRANCE

CZECH

VIETNAM

SERBIA MONTENEGRO

KAZAKHSTAN

LUXEMBURG

SINGAPORE

ITALY

UNITED KINGDOM

CZECH

HUNGARY

POLAND

SINGAPORE (STARHUB)

CZECH

NETHERLANDS

SLOVAKIA

MACEDONIA

THAILAND

ITALY

ROMANIA

SLOVENIA

CZECH

ROMANIA

SPAIN

ROMANIA

IRELAND

GREECE

CROATIA

HUNGARY

MALAYSIA

ROMANIA

UNITED KINGDOM

AUSTRIA

UK & IRE

IRELAND

POLAND

GERMANY

PORTUGAL

SRI LANKA

UKRAINE

SERBIA MONTENEGRO

NETHERLANDS

BULGARIA

AUSTRIA

NEPAL

SLOVAKIA

AUSTRIA

IRELAND

SWEDEN

THAILAND

BANGLADESH

GREECE

PHILIPPINES

CROATIA

CAUCASUS

GERMANY

SINGAPORE

UNITED KINGDOM

SEAD SERBIA

SPAIN

SINGAPORE

GERMANY

INDIA

SLOVAKIA

BALTICK

PHILIPPINES

ALBANIA

POLAND

RUSSIA

NORDIC

AUSTRIA

ITALY

SPAIN

SWITZERLAND

2025-04-01 3 regions BL: UE Date: 2025.04 Version: 7.5

Available in these regions:

ECUADOR

CHILE

PANAMA

2025-04-01 1 regions BL: UE Date: 2025.04 Version: 7.5

Available in these regions:

INDONESIA

2025-01-01 1 regions BL: SE Date: 2025.01 Version: 6.4

Available in these regions:

ECUADOR

2025-01-01 1 regions BL: UE Date: 2025.01 Version: 6.3

Available in these regions:

ECUADOR

2025-01-01 32 regions BL: SE Date: 2025.01 Version: 6.2

Available in these regions:

URUGUAY

PERU

PARAGUAY

PANAMA

MEXICO

GUATEMALA

ECUADOR

COSTA RICA

COLOMBIA

BOLIVIA

ARGENTINA URUGUAY

PERU

MEXICO

DOMINICAN REP.

COLOMBIA

CHILE

BRAZIL

ARGENTINA

2025-01-01 116 regions BL: SE Date: 2025.01 Version: 6.2

Available in these regions:

UNITED KINGDOM

UNITED ARAB EMIRATES

UK & IRE

TUNISIA

THAILAND

SRI LANKA

SPAIN

SLOVENIA

SLOVAKIA

SINGAPORE (STARHUB)

SINGAPORE

SEAD SERBIA

SAUDI ARABIA

ROMANIA

PORTUGAL

POLAND

PANAMA

NORDIC

NEW ZEALAND

NETHERLANDS

NEPAL

LEBANON

KENYA

ISRAEL

IRELAND

ECUADOR

CHILE

CAUCASUS

BULGARIA

BANGLADESH

ALBANIA

AFGHANISTAN

VIETNAM

UNITED KINGDOM

UNITED ARAB EMIRATES

UNITED KINGDOM

UNITED ARAB EMIRATES

UKRAINE

SWITZERLAND

UNITED ARAB EMIRATES

THAILAND

TURKEY

SWEDEN

SWITZERLAND

SPAIN

SOUTH AFRICA

SINGAPORE

SLOVAKIA

SLOVENIA

SLOVAKIA

SPAIN

SLOVENIA

SERBIA MONTENEGRO

SOUTH AFRICA

RUSSIA

ROMANIA

PORTUGAL

POLAND

PORTUGAL

POLAND

PHILIPPINES

PAKISTAN

NETHERLANDS

NIGERIA

MOROCCO

NETHERLANDS

MACEDONIA

LUXEMBURG

KAZAKHSTAN

MALAYSIA

ITALY

IRELAND

INDIA

HUNGARY

GREECE

GERMANY

EGYPT

GERMANY

FRANCE

CZECH

FRANCE

CZECH

CROATIA

BALTICK

AUSTRIA

AUSTRALIA

AUSTRIA

AUSTRALIA

2025-01-01 1 regions BL: SE Date: 2025.01 Version: 6.2

Available in these regions:

INDONESIA

2025-01-01 3 regions BL: SE Date: 2025.01 Version: 6.2

Available in these regions:

DOMINICA

CHILE

ARGENTINA

2024-09-01 1 regions BL: SD Date: 2024.09 Version: 6.6

Available in these regions:

ECUADOR

Latest

2022-03-01 1 regions BL: U4 Date: 2022.03 Version: 2.4

Available in these regions:

NICARAGUA

Latest

2021-05-01 1 regions BL: U3 Date: 2021.05 Version: 0.1

Available in these regions:

JAMAICA

Latest

2021-04-01 3 regions BL: U3 Date: 2021.04 Version: 0.10

Available in these regions:

SAMPLE

Latest

2021-02-01 2 regions BL: U1 Date: 2021.02 Version: 0.9

Available in these regions:

UZBEKISTAN CENTRAL ASIA

UNITED KINGDOM

Latest

2021-02-01 1 regions BL: U1 Date: 2021.02 Version: 0.9

Available in these regions:

COSTA RICA

Download Firmware with GNSF

You can download firmware files using GNSF (Get New Samsung Firmware), a tool that allows direct firmware downloads from Samsung servers.

Download GNSF Tool

GUI Version (Windows) Console Version (Windows) GNSF Tool Info

Quick Command for This Device

Replace YOUR_IMEI with your device's IMEI and XAA with your region code.

Additional Options

-v VERSION - Specify version
--resume - Resume downloads
--no-decrypt - Skip decryption

IMEI Important: You should enter your complete IMEI number. While GNSF can attempt to generate missing digits if you provide only the first 8+ digits, this may not be sufficient for downloading firmware in all cases. Using your full IMEI ensures the highest success rate.

Important Flashing Info

To Keep Your Data When Flashing:

Always use HOME_CSC file instead of regular CSC file in Odin's CSC slot!

Region Compatibility:

You can safely flash firmware from any region (CSC) to your phone. In 99% of cases, it doesn't affect functionality and just updates the firmware version.

Firmware Components:

AP - System files
BL - Bootloader
CP - Modem/baseband
CSC - Region configuration (wipes data)
HOME_CSC - Region config (keeps data)

Detailed Flashing Guide