Redmi 10C (fog) QCN File Download | Fix Null IMEI & Unknown Baseband
Download Redmi 10C (fog) QCN file to fix null IMEI, unknown baseband, no service, and network issues. 100% tested working QCN for Qualcomm SM6225. Flash using QPST or UMT QcFire. Direct link below. ...
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Full Specifications
Redmi 10C fog QCN File
| Description | Original QCN (Qualcomm Calibration Network) file for Xiaomi Redmi 10C codename 'fog' (Model 220333QAG / 220333QAI). Restores IMEI numbers, WiFi/BT MAC addresses, network calibration, and fixes unknown baseband after flashing or EFS corruption. |
| Device Name | Redmi 10C (fog) |
| Brand | Xiaomi / Redmi |
| Model No. | 220333QAG / 220333QAI |
| Codename | fog |
| Chipset | Qualcomm Snapdragon 680 (SM6225) |
| CPU | Octa-core (4x2.4GHz Kryo 265 Gold + 4x1.9GHz Kryo 265 Silver) |
| GPU | Adreno 610 |
| RAM Options | 4GB / 6GB LPDDR4X |
| Storage Options | 64GB / 128GB UFS 2.2 |
| File Name | Redmi_10C_fog_QCN_File.rar |
| File Size | 57.63 KB |
| File Type | QCN (Qualcomm Calibration Network) |
| Purpose | IMEI repair, Baseband fix, WiFi/BT MAC restore, No Service fix, Network calibration |
| Flash Tools | QPST / QFIL, UMT QcFire, Octoplus, Xiaomi Tool |
| Working Status | 100% Tested Verified |
| Source | ONFIX / GSM-Forum Verified |
What This QCN File Fixes
| Null IMEI | Restores IMEI from 000000000000000 to original |
| Unknown Baseband | Brings back network connectivity and signal |
| WiFi MAC 02:00:00:00:00:00 | Restores original WiFi MAC address |
| Bluetooth MAC Zero | Fixes Bluetooth addressing |
| No Service Issue | Resolves 'No Service' or 'Emergency Calls Only' |
| EFS Corruption | Repairs corrupt EFS partition data |
| Network Calibration | Recalibrates after firmware flash |
| IMEI 0 or 0000 Fix | Fixes phones showing IMEI as all zeros |
Requirements Before Flashing
| Battery | 60% or above (5000mAh) |
| USB Cable | Original or high-quality data cable |
| USB Port | Direct USB 2.0 port on motherboard |
| Drivers | Qualcomm HS-USB QDLoader 9008 drivers |
| Tools | QPST / QFIL v2.7.496 or newer |
| Bootloader | Unlocked bootloader required for some methods |
| RSA Resistor | Remove RSA resistor (if authentication failed) |
| Backup First | Take QCN backup before writing new one |
| PC OS | Windows 10/11 64-bit |
How to Enter Diagnostic Mode on Redmi 10C
| Method 1 - Dialer Code | Dial *#*#717717#*#* on phone dialer |
| Method 1 Response | Should show 'Open diag enable' message |
| Method 2 - ADB Command | adb shell setprop sys.usb.config diag,adb |
| Method 3 - Hidden Menu | Dial *#*#13491#*#* → Select Diag + ADB |
| Method 4 - Test App | Use 'am start -n com.longcheertel.midtest/.Diag' |
| Verification | Check Device Manager → Ports → Qualcomm HS-USB Diagnostics (COMxx) |
Flashing Steps - QPST QFIL Method
| Step 1 | Download and extract Redmi 10C QCN file |
| Step 2 | Install Qualcomm drivers and QPST on PC |
| Step 3 | Enable Diagnostic mode on Redmi 10C (see above) |
| Step 4 | Connect phone to PC via USB cable |
| Step 5 | Open QFIL tool (Start Menu → QPST → QFIL) |
| Step 6 | Click 'Select Port' and choose your device COM port |
| Step 7 | Go to Tools → QCN Backup Restore |
| Step 8 | Click Browse and select the QCN file |
| Step 9 | Click 'Restore QCN' button |
| Step 10 | Wait for 'Restore Success' message |
| Step 11 | Disconnect USB and reboot phone |
| Step 12 | Dial *#06# to verify IMEI restored |
Flashing Steps - UMT QcFire Method
| Step 1 | Open UMT QcFire software (Professional tool) |
| Step 2 | Put Redmi 10C in EDL or Diagnostic mode |
| Step 3 | Connect phone to PC |
| Step 4 | Go to QCN Manager tab |
| Step 5 | Click 'Write QCN' button |
| Step 6 | Select Redmi 10C fog QCN file |
| Step 7 | Click 'Start Write' |
| Step 8 | Wait for success message |
| Step 9 | Disconnect and reboot device |
Before Flashing - Important Prep for Redmi 10C
| RSA Resistor Removal | Newer Redmi 10C units need RSA resistor removed for EDL access |
| ENG Firmware First | Some users need to flash ENG firmware before QCN restore |
| ENG ROM Name | C3QA_KeepNV_fog_factory_images_FACTORY-LLDLM507-T524-FACTORY-FOG-0328 |
| Mi Auth Account | Auth-enabled devices may need Mi Auth authorized account |
| Bootloader Unlock | Unlocked bootloader makes process easier |
| Security Patch Issue | March 2023+ patches may block QCN write |
After QCN Restore - Steps
| Step 1 | Reboot Redmi 10C after successful restore |
| Step 2 | Dial *#06# → Verify both IMEI numbers shown |
| Step 3 | Check Settings → About Phone → Baseband version |
| Step 4 | Test WiFi and Bluetooth connectivity |
| Step 5 | Insert SIM card → Check network signal |
| Step 6 | If IMEI still null → Use SN Write Tool or Maui META |
| Step 7 | Flash Stock ROM if facing system issues |
IMEI Repair Alternative Methods
| Method 1 - SN Write Tool | Write IMEI directly without QCN |
| Method 2 - Maui META Tool | For Qualcomm chipset IMEI writing |
| Method 3 - UMT QcFire IMEI | Direct IMEI repair in professional tool |
| Method 4 - Octoplus Box | Full EFS/QCN management |
| Method 5 - Hex Editor | Modify QCN file with Ultraedit before restore |
| Note | Always use original IMEI from phone box |
Troubleshooting Common Issues
| Device Not Detected | Reinstall Qualcomm drivers, try different USB port |
| Auth Error / RSA Issue | Remove RSA resistor from motherboard or use authorized EDL cable |
| Restore Failed | Enable diagnostic mode properly, check COM port |
| IMEI Still Null After Restore | QCN write incomplete → retry with UMT QcFire |
| Baseband Unknown | Flash modem partition from stock ROM |
| WiFi MAC Still 00:00:00:00:00:00 | QCN restore didn't write correctly |
| Phone Not Booting | Flash full stock firmware via Mi Flash Tool |
| Sahara/Firehose Error | Use older QFIL version or change USB port |
| EFS Reset Needed | Reset EFS before restoring QCN in some cases |
Tools Compatibility for Redmi 10C
| QPST QFIL | Free - Best for QCN backup/restore |
| UMT QcFire | Professional - Full support for fog/SM6225 |
| Octoplus Pro | Professional - QCN + IMEI repair |
| Mi Flash Tool | Free - For stock ROM flashing |
| SN Write Tool | Free - For IMEI writing after QCN |
| XiaomiTool | Free/Paid - EDL flashing with auth bypass |
Important Warnings
| Warning 1 | Always BACKUP original QCN before writing new one |
| Warning 2 | Use only for Redmi 10C fog (SM6225) - wrong model bricks device |
| Warning 3 | IMEI modification is ILLEGAL in many countries |
| Warning 4 | Phone may lose Widevine L1 (Netflix HD) after QCN restore |
| Warning 5 | May void warranty permanently |
| Warning 6 | Professional use only - not for beginners |
| Warning 7 | DWYOR - Do With Your Own Risk |
| Warning 8 | Never disconnect USB during active write operation |
Download Information
| File Name | Redmi_10C_fog_QCN_File.rar |
| File Size | 57.63 KB |
| Compression | RAR archive (WinRAR/7-Zip to extract) |
| Contains | Redmi_10C_fog.qcn file |
| Verified By | ONFIX + GSM-Forum community |
| Tested On | Xiaomi Redmi 10C (220333QAG) with MIUI 13 |
| Working Status | Confirmed working by multiple users |
| Alternative | Also available in multi-model QCN pack |
Related Files for Redmi 10C
| Stock ROM | Download MIUI V13.0.13.0.RGEMIXM for fog |
| ENG Firmware | C3QA_KeepNV_fog_factory_images_FACTORY-LLDLM507-T524 |
| Drivers | Qualcomm USB Driver v1.0.10061.1 |
| Tool Pack | QPST v2.7.496 + QFIL + Drivers (All in one) |
Search Tags
| Tag 1 | Redmi 10C fog QCN file download |
| Tag 2 | Xiaomi Redmi 10C IMEI repair |
| Tag 3 | Redmi 10C baseband unknown fix |
| Tag 4 | fog SM6225 QCN restore |
| Tag 5 | Redmi 10C null IMEI solution |
| Tag 6 | No service fix Redmi 10C |
| Tag 7 | Redmi 10C EFS corruption repair |
| Tag 8 | QPST QCN restore Xiaomi |
| Tag 9 | UMT QcFire Redmi 10C fog |
| Tag 10 | Redmi 10C network calibration file |
Disclaimer
| Risk Statement | All operations performed at your own risk (DWYOR) |
| No Liability | We are not responsible for any bricked devices or data loss |
| Read Instructions | Review all steps carefully before starting the process |
| Correct File | Ensure you are using QCN file only for Redmi 10C fog |
| Professional Use | Recommended for experienced service technicians only |
| Legal Compliance | IMEI modification may violate local laws - use only to restore original IMEI |
| No Warranty | File provided 'as is' without any warranty |
Redmi 10C (fog) QCN File Download | Fix Null IMEI & Unknown Baseband - Description & Features
Download Redmi 10C (fog) QCN file to fix null IMEI, unknown baseband, no service, and network issues. 100% tested working QCN for Qualcomm SM6225. Flash using QPST or UMT QcFire. Direct link below.
Tags:
#Redmi10C #fog #QCNFile #IMEIRepair #BasebandFix #XiaomiRedmi10C #QPST #QFIL #UMTQcFire #Qualcomm #NoServiceFix #NetworkRepair
Tags:
#Redmi10C #fog #QCNFile #IMEIRepair #BasebandFix #XiaomiRedmi10C #QPST #QFIL #UMTQcFire #Qualcomm #NoServiceFix #NetworkRepair
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