Default Passcode

I entered

E.setBootCode('NRF.setAdvertising({},{name: "<name>"});',true);

To change the devise name, which it did but wiped everything else.

Now when I try and pair to bluetooth (to restore settings) it's asking for a passcode I never set.

Done all resets I could find. Name remains changed and default passcodes not working.

Is there an Esprunio default passcode?