A customer reported an issue with the Xhorse MQB48 Adapter for the VVDI MLB Tool when attempting to collect data, receiving the error:
❌“The current power supply quality is critically low, making it impossible to collect valid data.”
Troubleshooting Steps Taken:
✅ Updated the software
✅ Verified both USB cables were properly connected
✅ Replaced the EEPROM that came with the MQB48 Adapter
✅ Tested on two different laptops
Despite these efforts, the issue persisted.
Official Xhorse Solution:
🔹 Use a direct USB connection from the PC (Refer to the provided images for correct setup).
🔹 Ensure the voltage is 5V, and the current does not exceed 0.5A.
🔹 The MQB48 Adapter should only be connected via USB to a PC or VVDI Key Tool Plus Pad (PC recommended).
🔹 Double-check the wiring diagram for correctness.
🔹 If the issue persists, download and install VVDI MLB Tool 2.0.4.2 from the link below and run it directly:
📥 Download VVDI MLB Tool 2.0.4.2
