Keydiy KD-X4 BMW BDC2 BDC3 Wake Line Not Connected Solution

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:

The WAKE line (encrypted pin 17) is not connected.

Use the wrong adapter.

You can modify the keydiy adapter like this:

Or use the Keydiy dedicated DB25 adapter without modification.