Samsung Galaxy S21 FE 5G (SM-G990B2) Firmware Overview
What is the latest SM-G990B2 firmware?
G990B2XXSKIZH2, released August 25, 2026 for region OPV with Android 16. It is a security update on bootloader binary 20. The archive holds 1 official build for this region.
Is the Samsung Galaxy S21 FE 5G still getting updates?
Yes. The newest build is from August 2026.
Can I downgrade the SM-G990B2 firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 20:
- Binary 20 — since Aug 2026
SM-G990B2 firmware for region OPV
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
G990B2XXSKIZH2
Security update
|
20 | OPV | 16 |
2026-08-25 | Download |
How to Flash SM-G990B2 Firmware
Put the Samsung Galaxy S21 FE 5G into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 20 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.