Download Samsung GALAXY S21 5G SM-G991B - 3IE - G991BXXUEGXJE

Download the firmware flash file GALAXY S21 5G with the code SM-G991B. Samsung's latest firmware for the region with CSC code is  3IE (3IE - Ireland). This firmware PDA version is G991BXXUEGXJE and the Android version is U (Android 14). This firmware file size is 8.15 GB. Please make sure the Galaxy model code is correct. You can check the model code on your Phone, Setting - About, Download mode or you can find it by flipping your phone or among the things you found in the box.

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

Device	GALAXY S21 5G	Model	SM-G991B
AP Version	G991BXXUEGXJE	CSC Version	G991BOXMEGXJE
OS	U (Android 14)	CSC
Build Date	20241105034611	Binary (BIT/U)	E
Upload Date	2024-12-01	File Size	8.15 GB

How to flash Samsung GALAXY S21 5G SM-G991B firmware?

1. Extract (unzip) downloaded Galaxy firmware using WinRAR or 7Zip. 
    
2. Download the Samsung Odin v3.13.1
    
3. Open the Odin Execute file.
    
4. Reboot your phone into Download Mode (Hold HOME + POWER + VOL DOWN buttons. / Hold VOL DOWN + Bixby buttons and insert the USB Data Cable).
    
5. Connect the SAMSUNG phone with your PC/laptop and wait until you get a blue sign in Odin.
    
6. In Odin load the SAMSUNG firmware to AP/PDA or (AP/BL/CP/CSC).
    
7. Make sure the re-partition is not ticked.
    
8. Press on the START button, and wait for a successful flash process.  
    
9. Once the process is complete, your phone will reboot automatically.