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 Download Samsung Galaxy S21 5G SM-G991B - CAL - G991BXXU4BULF

Download the firmware flash for Samsung Galaxy S21 5G with the code is SM-G991B. This firmware for the region with CSC code is CAL (CAL - Thailand). 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 G991BXXU4BULF and Android version is S(Android 12). This firmware size is 7.16 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 G991BXXU4BULF
  • CSC VERSION G991BOXM4BULF
  • ANDROID VERSION S(Android 12)
  • BIT (BINARY/U/SW REV.) 4
  • SIZE 7.16 GB  Full Files
  • MD5 4195193a8888999a82574ee7191ac826
• Overall stability of functions improved.
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Child files of G991BXXU4BULF - If you want to download full firmware. Download one file ABOVE instead download all child files
Download Filename Download/Size MD5
AP_G991BXXU4BULF_G991BXXU4BULF_SCL23365054_VCL23364085_MCL23373251_SQB47608375_VQB47608374_MQB47608349_REV01_user_low_ship_MULTI_CERT_meta_OS12.tar.md5.zip 81 dl
5.81 GB 		MD5
BL_G991BXXU4BULF_G991BXXU4BULF_SCL23365054_VCL23364085_MCL23373251_SQB47608375_VQB47608374_MQB47608349_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 156 dl
7.97 MB 		MD5
CP_G991BXXU4BULG_CP21437896_SCL23365054_VCL23364085_MCL23373251_SQB47608375_VQB47608374_MQB47798138_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 68 dl
32.45 MB 		MD5
CSC_OXM_G991BOXM4BULF_SCL23365054_VCL23364085_MCL23373251_SQB47608375_VQB47608374_MQB47608349_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 60 dl
634.18 MB 		MD5
HOME_CSC_OXM_G991BOXM4BULF_SCL23365054_VCL23364085_MCL23373251_SQB47608375_VQB47608374_MQB47608349_REV01_user_low_ship_MULTI_CERT.tar.md5.zip 50 dl
634.13 MB 		MD5
Lastest combinations Galaxy S21 5G SM-G991B
Device Version Bit/SW REV. FA Change list
SM-G991B / Galaxy S21 5G G991BXXU5AVD1 5 FAR0 CL24116225
SM-G991B / Galaxy S21 5G G991BXXU4AUL1 4 FAR0 CL23342197
SM-G991B / Galaxy S21 5G G991BXXU3AUF1 3 FAR0 CL21875223
SM-G991B / Galaxy S21 5G G991BXXU2AUD3 2 FAR0 CL21561395
SM-G991B / Galaxy S21 5G G991BXXU1AUA3 1 FAR0 CL20796681
All combinations
 Recent posts
 How to flash Samsung Galaxy S21 5G SM-G991B 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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