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 Download Samsung Galaxy S21 Ultra 5G SM-G998B - INU - G998BXXU1ATLF

Download the firmware flash for Samsung Galaxy S21 Ultra 5G with the code is SM-G998B. This firmware for the region with CSC code is INU (INU - India). Please make sure the code is correct. You can check model code in Setting - About, in Download mode or you can find it by flipping your phone or among the things you found in the box. This product PDA version is G998BXXU1ATLF and Android version is R(Android 11). This firmware size is 7.55 GB.

This firmware is official from Samsung Cloud Server. Of course, we recommend you are using official Samsung tool like Samsung Smart Switch or Samsung Kies. Samfw.com will not responsible for any damage caused by using the files on this website

  • AP VERSION G998BXXU1ATLF
  • CSC VERSION G998BOXM1ATLQ
  • ANDROID VERSION R(Android 11)
  • BIT (BINARY/U/SW REV.) 1
  • SIZE 7.55 GB  Full Files
  • MD5 03355d9cd72d495077e19c26e0450be0
  • CSC
    INU - India
  • BUILD DATE 20210108132634
  • ADD DATE 2026-05-28 21:37:32
  • DOWNLOADED 0
  • Remove FRP
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Child files of G998BXXU1ATLF - If you want to download full firmware. Download one file ABOVE instead download all child files
Download Filename Download/Size MD5
AP_G998BXXU1ATLF_CL20494173_QB36633446_REV01_user_low_ship_MULTI_CERT_meta_OS11.tar.md5.zip 0 dl
5.86 GB 		MD5
BL_G998BXXU1ATLF_CL20494173_QB36633446_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 0 dl
9 MB 		MD5
CP_G998BXXU1ATLF_CP17695423_CL20494173_QB36633446_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 0 dl
31.76 MB 		MD5
CSC_OMC_OXM_G998BOXM1ATLQ_CL20494173_QB36873848_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 0 dl
812.04 MB 		MD5
HOME_CSC_OMC_OXM_G998BOXM1ATLQ_CL20494173_QB36873848_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 0 dl
811.99 MB 		MD5
Lastest combinations Galaxy S21 Ultra 5G SM-G998B
Device Version Bit/SW REV. FA Change list
SM-G998B / Galaxy S21 Ultra 5G G998BXXU6AWA1 6 FAR0 CL25915284
SM-G998B / Galaxy S21 Ultra 5G G998BXXU5AVD1 5 FAR0 CL24116285
SM-G998B / Galaxy S21 Ultra 5G G998BXXU4AUL1 4 FAR0 CL23342155
SM-G998B / Galaxy S21 Ultra 5G G998BXXU3AUD3 3 FAR0 CL21561395
SM-G998B / Galaxy S21 Ultra 5G G998BXXU2AUD2 2 FAR0 CL21483477
All combinations
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 How to flash Samsung Galaxy S21 Ultra 5G SM-G998B firmware

1. Extract (unzip) the Samsung firmware file. Recommended using WinRAR or 7-Zip

2. Download Odin Tool 3.13.1

3. Extract Odin ZIP file

4. Open Odin execute file

5. Reboot Samsung phone in Download Mode (hold Home + Power + Volume Down buttons / hold Volume Down + Bixby buttons then plug-in cable)

6. Connect you Samsung phone and wait until you get a blue sign in Odin

7. Add the 1 file Samsung firmware to AP/PDA or 4 files Samsung firmware (AP/BL/CP/CSC) to it's slots

8. Make sure re-partition is NOT ticked

9. Click the START button, sit back and wait few minutes

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