Download Samsung Galaxy S21 Ultra 5G SM-G998B - XID - G998BXXU1AUA4

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 XID (XID - Indonesia). 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 G998BXXU1AUA4 and Android version is R(Android 11). This firmware size is 6.2 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 G998BXXU1AUA4
  • CSC VERSION G998BOLE1AUA4
  • ANDROID VERSION R(Android 11)
  • BIT (BINARY/U/SW REV.) 1
  • SIZE 6.2 GB  Full Files
  • MD5 2fddd1ca7381856e6c5a9b9cb8da5f4d
  • CSC
  • BUILD DATE 20210108130005
  • ADD DATE 2026-05-29 02:08:40
  • SECURITY PATCH LEVEL 2021-01-01
  • DOWNLOADED 0
• The performance of Camera has been improved
• Wi-Fi connectivity and stability have been improved.
• The performance of Fingerprint recognition has been improved.
• Overall stability of functions improved.
• The security of your device has been improved.
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Child files of G998BXXU1AUA4 - If you want to download full firmware. Download one file ABOVE instead download all child files
Download Filename Download/Size MD5
AP_G998BXXU1AUA4_CL20701476_QB37230672_REV01_user_low_ship_MULTI_CERT_meta_OS11.tar.md5.zip 0 dl
5.88 GB
MD5
CP_G998BXXU1AUA4_CP17897591_CL20701476_QB37230672_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 0 dl
31.78 MB
MD5
CSC_OMC_OLE_G998BOLE1AUA4_CL20701476_QB37234213_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 0 dl
121.4 MB
MD5
HOME_CSC_OMC_OLE_G998BOLE1AUA4_CL20701476_QB37234213_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 0 dl
121.78 MB
MD5
BL_G998BXXU1AUA4_CL20701476_QB37230672_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 0 dl
9 MB
MD5
Lastest combinations Galaxy S21 Ultra 5G SM-G998B
 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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