For both: turn on the car stereo and wait for a while (I took more than half an hour in my case). The "Err" message will desappear and the message "Code" will appear again.

I don't have the code. If someone knows how to get it or override it, please let us know!

I need the code

Probá en ponerlo en una bolsa ermética y metelo en el freezer, esto aveces funciona.

Necesito el manual del DC349/1 AP alguien lo tiene? Gracias

Same problem. have the code card, but can't enter it.
The error displays is "Err"

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