Download Samsung Galaxy A40 SM-A405FN Firmware (Stock ROM) – Free & Official
Looking to update, restore, or repair your Samsung Galaxy A40 SM-A405FN? Download the official Samsung stock firmware (flash file) and flash it using Odin Tool to fix boot loops, system errors, and more.
✅ Free firmware downloads
✅ Max speed & verified links
✅ No registration required
Get it now from the best Samsung firmware source – AndroidHub.co.in
📱 Firmware Information – SM-A405FN (Galaxy A40)
| Field | Details |
|---|---|
| Device | Samsung Galaxy A40 |
| Model | SM-A405FN |
| OS Version | Android 9 / 10 / 11 (One UI) |
| File Format | ZIP (Multi-file: BL, AP, CP, CSC) |
| Tool Required | Odin Flash Tool |
| Download Type | Free / Premium (optional) |
📂 Available Firmware Versions
- 🔹 A405FNXXU4CVD1 – Android 11
- 🔹 A405FNXXU3CUG2 – Android 11
- 🔹 A405FNXXU3BTC4 – Android 10
- 🔹 A405FNXXU2ASJ1 – Android 9
🛠️ How to Flash Samsung SM-A405FN Firmware Using Odin
⚠ Important: Flashing will erase all data. Backup before proceeding.
🔧 Pre-Requirements
- Charge the device to at least 30%
- Download and install:
✅ Step-by-Step Flashing Guide
- Turn Off Your Phone
- Press and hold Power + Volume Up
- In Recovery mode, select Reboot to Bootloader
- Phone will enter Download Mode
- Connect the phone via USB to PC
- Open Odin Tool as Administrator
- Load firmware files:
- BL → Bootloader file
- AP → Main firmware file
- CP → Modem/Radio file
- CSC → Region/customization file
- Once Odin detects the phone (blue ID:COM box), click Start
- Wait for the process to complete (you’ll see PASS message)
- Device will reboot automatically
🔧 What Can This Firmware Fix?
- ✅ Fix Custom Binary Blocked by FRP
- ✅ Resolve boot loop, stuck at logo, or freezing
- ✅ Repair IMEI, baseband, serial number issues
- ✅ Unbrick a dead or soft-bricked device
- ✅ Solve Wi-Fi, Bluetooth, and network issues
- ✅ Fix sensor, camera, or sound problems
- ✅ Perform hard reset, wipe cache, or pattern unlock
- ✅ Remove root and restore original firmware
- ✅ Change CSC and update Android version
- ✅ Optimize performance and fix system lag
⚠️ Important Notes
- Use only firmware that matches your model (SM-A405FN) and region
- Never disconnect USB during the flashing process
- Odin may fail if drivers or firmware files are mismatched
- For persistent issues, consider using Samsung Smart Switch or seeking professional support
✅ Download Samsung Galaxy A40 SM-A405FN Firmware Free
Get started now:
👉 Free Firmware Download – AndroidHub.co.in
👉 Premium High-Speed Download (Optional)
Tags:
Samsung A40 Firmware, Galaxy A40 SM-A405FN Flash File, A405FNXXU4CVD1, Odin firmware update, Samsung boot loop fix, One UI stock ROM, A40 update Android 11
