How to Enable QCOM Diag COM Port Oppo, Vivo, Xiaomi 2022

Hello & welcome back to, on this page we share a step-by-step guide to enable Qualcomm diagnostic or diag com Port 901D on any Qualcomm CPU smartphone. you can enable it on both rooted and unrooted devices.

Enable Diag Port on Rooted Phones:

On Rooted Phones, we can use ADB Command
adb devices
setprop sys.usb.config rndis,diag,adb
How to Enable Diag Port on Xiaomi Phones without Root:
  • open dialer and dial *#*#13491#*#*
How to Enable Diag Port on OnePlus phones without Root:
  • open dialer and dial *#801#
How to Enable Diag Port on Old Oppo Phones:
  • connect phone and run this tool
How to Enable Diag Port on Vivo Phones without Root:
  • open dialer & dial this code *#558#
  • Go to quality verification test
  • scroll down and tick on debugging port

Enable Diag Port on New Oppo Realme OnePlus Phones:

  • Open the dialer app on the phone, dial *#9434#
  • Open Device Manager and expand the Network Adapters category.
  • Disable all your ethernet adapters except the wifi adapter.
  • Click on the action tab, then choose to add legacy hardware.
  • Click next.
  • Choose install the hardware that I manually select from a list (Advanced) and click next.
  • Click network adapters, then click next.
  • Select Microsoft and choose Microsoft KM-TEST Loopback Adapter, then click next.
  • Click next, then click finish.
  • In the device manager, browse the Network adapters and double-click on Microsoft KM-TEST Loopback Adapter to open its properties.
  • Go to the Advanced tab and find the Network Address option
  • Click the blank checkbox and paste 704D7B61ABCD in the text box

oppo free unlocker

  • Close the properties window and close Device Manager.
  • Download & Extract Oppo Free unlock. Open Sec5.exe.
  • Make sure your device is in MTP mode, In the tool press the ‘Unlock button. After about a second, a string of numbers and letters should show up in the left pane. A few seconds later, “OK” should start flashing in the right pane. Press “Stop unlocking” and close the window.

oppo free unlocker2

  • Open the dialer app on the phone, dial *#9434#
  • Then enter *#649010# and to unlock any option You need to enter Confirm code which is 6776 and You are ready to go to backup or restore IMEI and many more …
  • done, Now you can use any Imei Repair Tool to Read & write QCN

oppo enable diag port

Note: Please Disable Windows defender or any Antivirus installed on your Computer. Otherwise, Setup or some important files will be deleted or corrupted by Antimalware.

[*]Compatibility: The tool runs perfectly on Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 (32-bit and 64-bit), and Windows 11 (32-bit and 64-bit).
[*]Take a Backup: If you are willing to try the above tool, then please take a backup of your personal data from your Android Smartphone or Tablet. As flashing any Firmware or recovery may brick the device.
[*]Credits: All Unlock Tools and Crack/Keygen is created and distributed by the developer. So, full credits go to the developer for sharing the tool for free.