Recent updates are rolling out for T-Mobile Samsung Galaxy S21 with various enhancements and improvements. This roll out is only for U.S users and other countries may wait until their model is upgraded to Android 11.
Samsung Galaxy S21 is a phone that comes with 64MP + 12MP + 12MP Triple Rear Facing Cameras and a 10MP Front Facing Camera. It is huge phone with 6.2 inches FHD+ dynamic AMOLED flat display making the viewing amazing. The security is perfect but can be compromised by rooting it. Here in this page you will get to know about the updating procedure of Galaxy S21 with latest android 11. If the device is rooted then after Odin flash the device will get to its originality. Well, go through it with proper reading and establishing the PDA G991USQU3AUDD and CSC G991UOYN3AUDD firmware.
Caution
Make sure to cross check the Name and model of your Smartphone before starting the update since it’s only meant for the said device. Using the firmware on other handsets might brick your handset or even create bugs in it. We at BlogZamana will never be blamed for any sort of issues or bugs if created in your device because of this update. So what you do is at your own risk.
Pre-requisites
- Samsung Galaxy S21 SM-G991U (T-MOBILE)
- Original USB Cable
- Enable USB Debugging Mode. You will find the option in the Developer Section of your device. By pressing built number for 7 time
- Back Up all important data in your Smartphone since the update will erase all your data.
- Keep at least 70% battery back up on your Samsung Galaxy S21 to avoid accidental shut down during installation.
- Make sure you install the latest firmware on SM-G991U TMB USA (T-MOBILE) model only
- Make sure, the SAMSUNG-drivers are installed on your PC
- Download Odin3-v3.14.4.zip file keep in PC
- Download Android 11 G991USQU3AUDD Firmware keep in PC
Tutorial to Update on Samsung Galaxy S21 SM-G991U
- Download Android 11 G991USQU3AUDD Firmware for Samsung Galaxy S21 SM-G991U. Then extract the firmware file you just downloaded in your PC. You should get 5 files.
AP (System &Recovery)
BL (Bootloader)
CP (Modem / Radio)
CSC_*** (Country / Region / Operator)
HOME_CSC_*** (Country / Region / Operator)
2. Now add each file to its relevant field in Odin v3.14.4. If you want to do a clean flash than Use CSC_*** or if you want to keep your apps and data then add in HOME_CSC_***.
3. Switch off the device and then reboot your phone in Download / Odin mode pressing the POWER + VOLUME DOWN + BIXBY
4. If the above options did not work then try 5 more method by pressing;
- VOLUME DOWN + VOLUME UP then USB cable
- POWER + VOLUME DOWN + VOLUME UP
- POWER + VOLUME DOWN + HOME BUTTON
- (Note9) USB cable + VOLUME DOWN + BIXBY
- (Note10) POWER + VOLUME UP
5. Once you are in download mode than connect your phone to the PC, if possible use the original USB cable you got with your phone.
6. A BLUE box will show up with the COM port number when the Odin gets detected in your device.
7. Make sure you don’t tick any extra boxes. The only options to be ticked are F.Reset Time and Auto-Reboot only.
8. After that click on the start button, wait for Odin to say ‘PASS ‘in a GREEN box.
9. Once the flash is completed then your phone will reboot and then disconnect your phone from the PC
10. Now again go to ODIN in PC and there you get AP (System &Recovery) get Extract the firmware file you just downloaded. You should get 1 file MD5-file in AP-field in Odin and add that.
11. Reboot your phone in Download mode by pressing the POWER + VOLUME DOWN + BIXBY
12. Once you are in download mode than connect your phone to the PC, if possible use the original USB cable you got with your phone.
13. A BLUE box will show up with the COM port number when the Odin gets detected in your device.
14. Make sure you don’t tick any extra boxes. The only options to be ticked are F.Reset Time and Auto-Reboot only.
15. After that click on the start button, wait for Odin to say ‘PASS ‘in a GREEN box.
Voila! The Galaxy S21 SM-G991U T-Mobile version is updated with G991USQU3AUDD Firmware for USA users.