Samsung Galaxy S21 FE 5G (SM-G990U)
G990USQUCGXG3 Firmware for Samsung Galaxy S21 FE 5G (SM-G990U) — LLA
Firmware Information
- PDA Version
- G990USQUCGXG3
- CSC Version
- G990UOYNCGXG3
- CSC Code
LLA - Puerto Rico- Size
- 7.7 GB
- Build Date
- 2024-08-23
- Downloads
- 0
- Device Name
- Samsung Galaxy S21 FE 5G
- Model Code
- SM-G990U
- Brand
- Samsung
- CSC Region
- LLA - Puerto Rico
- Firmware Package
- Full files
- Status
- New
- Added On
- 2026-07-20
- Updated On
- 2026-08-03
- Total Downloads
- 0
Compatibility
This firmware is compatible with Samsung SM-G990U. Check your model code, CSC, and device region before flashing.
Inside the ZIP File Breakdown
| File Type | File Size | Description | Extension | Download |
|---|---|---|---|---|
| AP | 8.64 GB | System, recovery, vendor, and main Android partitions. | .zip | Download |
| BL | 102.08 MB | Bootloader package required for device startup. | .zip | Download |
| CP | 61.95 MB | Modem and cellular radio firmware package. | .zip | Download |
| CSC | 112.52 MB | Regional carrier settings and customization data. | .zip | Download |
Verify your download
Compare this MD5 checksum against the file you downloaded to confirm it wasn't corrupted or tampered with in transit.
d3a2b065e3ed4d67199ee93029d88742This is the free official stock ROM for the Samsung Galaxy S21 FE 5G (SM-G990U), specific to the LLA region. This firmware has the PDA version G990USQUCGXG3 and runs on Android 14 with a bootloader binary revision of Bit C. Download this flash file to safely update or repair your device.
Samsung Galaxy S21 FE 5G Firmware ArchiveHow to Flash Samsung Galaxy S21 FE 5G Firmware with Odin
- 1
Download & Extract Files
Download the firmware ZIP and Odin tool from ZipFirmware. Extract both archives to a local folder — avoid paths with spaces or special characters.
- 2
Boot into Download Mode
Power off your Samsung device. Hold Vol Down + Power (or Vol Down + Bixby + Power on older models) until the warning screen appears, then press Vol Up to confirm.
- 3
Connect via USB & Confirm COM Port
Open Odin as Administrator on your PC and connect your device via USB. When the ID:COM box turns blue and shows "Added!", your device is recognized and ready to flash.
- 4
Load Firmware Files into Odin Slots
Click the BL, AP, CP, and CSC buttons in Odin and select the matching .tar.md5 files from your extracted firmware folder. Never mix files from different firmware versions.
- 5
Flash & Verify Success
Click Start. Odin flashes each partition in sequence. When the bar turns green and shows "PASS!", the flash is complete. Your device reboots automatically — do not disconnect USB until finished.