March 20, 2026
How to Solve Keydiy KD-X4 BMW BDC3 WAKE Line Not Connected Error
Problem:
Failed to read BMW BDC3 encrypted key data with Keydiy KD-X4. The APP said the wake line is not connected. Any solution?
Solution:
TheWAKE line (encrypted pin 17)is not connected.
Use the wrong adapter.
You can modify the keydiy adapter like this:
Or use theKeydiy dedicated DB25 adapterwithout modification.
Posted by: jean at
07:43 AM
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