Problem 1:
One of our customers tried to add a spare key to Audi Q7 2020 with the Xhorse VVDI MLB Tool. However the tool failed to collect key data.
Error “Key data calculation failed, error code 0”.
Common Issues with Collection Failures
- VCC1 and VCC2 are reversed.
- The capacitors were removed incorrectly or not removed.
- Short circuit in soldering.
- Data collection requires wireless reading of the key simultaneously; if the key is not positioned correctly, it will not be detected.
Check the above and collect key data again.
Problem 2:
My first time using the MLB tool. Upload took about 10 min, and 3 server fails; server internal error and data verification error.
If had server inter issue, maybe network issue. Have a better wifi than my hotspot and it worked first time.
Report:
After 5th try, it worked.
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