I got the xhorse dolphin xp005 mainboard replaced, then tried to restart the machine, it refused to start and there was a fault code 73990 on the small screen. Any solution?
Delete old Dolphin APK on mobile phone
Install new APK below
Or install new APK on another phone.
Then check Device information, scroll down menu and select Turn off display.
If database language is Chinese, provide S/N to vvdishop.com to change language.