If your POCO X6 5G is:
- Stuck in a bootloop
- Shows “Invalid IMEI” or no network
- Soft-bricked from a failed root or ROM
- Sluggish, crashing, or behaving erratically
You can flash the official Fastboot ROM and (if needed) restore IMEI using QCN backup via Qualcomm tools.
📱 What Is Stock Firmware?
Stock firmware (Fastboot ROM) is Xiaomi’s official software for your phone. Flashing it:
- Fixes boot issues and soft-bricked phones
- Restores missing/corrupted system files
- Removes root, Magisk, custom ROMs or TWRP
- Repairs IMEI/network issues (Qualcomm-based)
- Enhances stability and performance
🚨 When to Flash POCO X6 5G
Flash the firmware if:
- Your phone is stuck on the MIUI/POCO/HyperOS logo
- IMEI is null/invalid, or there’s no mobile signal
- The system is slow or crashes often
- You want to unroot or remove mods
- You need to downgrade MIUI/HyperOS
- You performed a format all + download by mistake
✅ What You Need
- ✅ Official Fastboot ROM (.tgz) for POCO X6 5G (codename: garnet)
- ✅ Latest Mi Flash Tool
- ✅ Qualcomm USB Drivers
- ✅ Windows PC + USB-C cable
- ✅ Unlocked bootloader
- ✅ Backup of important data and QCN (for IMEI repair)
🔧 Flash POCO X6 5G – Step-by-Step
Step 1: Download Fastboot ROM
- Search for POCO X6 5G (codename: garnet)
- Download the latest Fastboot ROM (.tgz) for your region
- Extract the archive – make sure it contains an
imagesfolder
Step 2: Install Tools & Drivers
- Install Qualcomm USB Drivers
- Install and open the latest Mi Flash Tool
Step 3: Boot Into Fastboot Mode
- Power off the phone
- Hold Volume Down + Power together
- You’ll see the Fastboot screen (bunny logo)
- Connect phone to PC via USB
Step 4: Flash the ROM
- Open Mi Flash Tool
- Click “Select”, choose the extracted ROM folder
- At the bottom, set the mode to “clean all”
- Click “Flash”
- Wait 5–10 minutes. Once done, the phone will reboot
📶 How to Repair IMEI (Qualcomm Devices)
⚠️ You must only restore the original IMEI printed on your phone’s SIM tray/box. Modifying IMEI is illegal in many countries.
IMEI Repair Method – QCN Restore via QPST Tool
Required Tools:
- ✅ QPST Tool
- ✅ QCN backup from your device or same model
- ✅ ADB access to enable DIAG mode
Step-by-Step IMEI Repair
1. Enable USB Debugging
- Go to Settings > About Phone > Tap MIUI Version 7x to enable Developer Options
- Enable USB Debugging in Developer Options
2. Enable DIAG Mode (ADB command)
Connect phone to PC and run:
bashCopyEditadb shell setprop sys.usb.config diag,adb
3. Open QPST Configuration
- Open QPST Configuration Tool
- Your device should show up under Ports as a COM port (DIAG mode)
4. Restore QCN
- Open Software Download (inside QPST folder)
- Go to Restore Tab > Load QCN File
- Click Start to write the QCN to your device
5. Reboot & Verify
- Reboot the phone
- Dial
*#06#to check IMEI status
🔄 Common Issues & Fixes
| Problem | Solution |
|---|---|
| Device not detected | Reinstall Qualcomm drivers / use different port |
| Mi Flash error | Try different Mi Flash version / re-extract ROM |
| Bootloop after flashing | Boot into Recovery → Wipe Data |
| IMEI not restored | Check DIAG mode / QCN file compatibility |
| QPST fails to detect phone | Use correct ADB + DIAG mode |
🔐 Flashing & Safety Tips
- Only use Fastboot ROMs (.tgz) – not recovery
.zip - Always match firmware region and model (Global/India/China)
- Do not lock bootloader unless flashing 100% official untouched ROM
- Keep battery at 50%+
- Codename of POCO X6 5G:
garnet - Back up QCN and personal data before flashing
