Since there is no digital code, here is the procedural "code" or sequence you must follow to restore factory settings. This method works for 99% of issues, including forgotten DAB+ stations and Bluetooth pairing errors.
A factory reset will restore your device to its original settings, erasing all customized settings, data, and saved information. grundig gx3800 factory reset code better
The unit should black out and restart with factory default settings. Accessing the Hidden Developer Menu Since there is no digital code, here is
: After the reset, the unit will restart and prompt you for the Initial Setup , where you must re-select your Country/Area and Language. The "Factory Settings" Password Mystery Since there is no digital code
To summarize the "better" approach: