You're looking for a factory reset code for the Grundig GX3800.
: From the Home screen, navigate to the Setup/Settings menu. grundig gx3800 factory reset code better
Press and hold the button for 10 seconds while the ignition is in the "On" or "ACC" position. You're looking for a factory reset code for
Follow these steps carefully. This will erase all stored stations, custom settings, and return the radio to its out-of-the-box state. The radio is stuck in a boot loop
: If the screen is unresponsive, check for a small "RST" (Reset) hole on the front panel. Use a paperclip to press it briefly to perform a hard reboot.