Problem:
I just got the mqb48 adapter for the Xhorse VVDI MLB Tool and it is showing up this error. It is updated, both USB cables connected. 2 different laptops and still have the same problem. I replaced the eeprom that came with it.
Error
“The current power supply quality is critically power, making it impossible to collect valid data.
Solution:
Follow the images below to use USB directly from pc.
Voltage 5V, Current not exceeding 0.5A.
The MQB48 adapter can only be plugged into a computer or key tool plus via USB. PC is recommended.
Also double check the wiring diagram, if everything is fine but still cannot collect data, download software here
Put it in the installation directory. Double-click to open it directly and try again.
