Download the Samsung firmware for the Galaxy S21 Ultra SM-G998U with product code SPR from Spint (cdma). This firmware has version number PDA G998USQU2AUC8 and CSC G998UOYN2AUC8. The operating system of this firmware is Android 11 , with build date Fri, 19 Mar 2021 01:58:37 +0000. Security patch date is 2021-04-01, with changelist 21281606.
Model | SM-G998U |
Model name | Galaxy S21 Ultra |
Country | |
Version | Android 11 |
Changelist | 21281606 |
Build date | Fri, 19 Mar 2021 01:58:37 +0000 |
Security Patch Level | 2021-04-01 |
Product code | SPR |
PDA | G998USQU2AUC8 |
CSC | G998UOYN2AUC8 |
AP (System &Recovery)
BL (Bootloader)
CP (Modem / Radio)
CSC_*** (Country / Region / Operator)
HOME_CSC_*** (Country / Region / Operator)
Other options in case first option did not work or isn't possible.
Option 2 VOLUME DOWN + VOLUME UP then USB cable
Option 3 POWER + VOLUME DOWN + VOLUME UP
Option 4 POWER + VOLUME DOWN + HOME BUTTON
Option 5 (Note9) USB cable + VOLUME DOWN + BIXBY
Option 6 (Note10) POWER + VOLUME UP
AP (System &Recovery)
Other options in case first option did not work or isn't possible.
Option 2 VOLUME DOWN + VOLUME UP then USB cable
Option 3 POWER + VOLUME DOWN + VOLUME UP
Option 4 POWER + VOLUME DOWN + HOME BUTTON
Option 5 (Note9) USB cable + VOLUME DOWN + BIXBY
Option 6 (Note10) POWER + VOLUME UP
For most devices, the model number (e.g. "GT-I9505" or "SM-G900F") is found inside the device. It becomes visible when you open your device and remove the battery.
As an alternative, you can also type your model name (e.g. "GALAXY S5") instead of the number. But it may be a bit more difficult to find your specific device that way.
Still not sure? Then perhaps Samsung can help you out with their model number lookup tool.