Supported models and features IMPORTANT! This service works only for users with timed license accounts or HCU dongle!
Step 1 (Preparation)
Connect the phone to PC via hardware testpoint, use a special Harmony OS testpoint cable!
Make sure it is visible in device manager on computer under “Ports” section:
Testpoint drivers download here
Download HCU tool here
On the “Account” tab enter your user name and password or use dongle with HCU activation. Click on “Check account” button and wait to be logged into the server (You get an account after “HCU timed license” purchase from resellers LIST or check “BUY” page)
Choose “Fastboot/Xloader (Hisilicon only) option from phone connectivity
Click on the “Xloader” tab and agree to terms if you wish to continue
According to your mobile’s CPU choose the correct loader (there may be multiple, try them until one works for you) and click “Read phone info”
Monitor detection (it may be slow)
A warning message will pop up during the detection process. Now you need to disconnect the mobile from the USB cable and connect it back, then click “OK” on the message box to continue
Wait for mobile to be fully detected
For network unlock, put a checkmark next to “SIM unlock”
Put a checkmark on the “Reboot after repair” option, and proceed by pressing the “Repair” button
Now just wait for the repair/unlock to complete, phone restarts to the home screen if the “Reboot after repair” option was checked