Locate the small pinhole labeled or RESET on the front panel (typically found on the bottom left corner near the physical buttons or volume knob). Take a paperclip, toothpick, or SIM ejector tool.

Over the last 12 months, we collected feedback from 50+ Grundig GX3800 owners who tried the 99990 reset code.

If you followed the hardware steps in Part 3 or the serial terminal method in Part 5, your device should now be fully functional. Remember: a factory reset is a tool, not a failure. With the correct code—now fixed and documented—your Grundig GX3800 can serve you for years to come.

Depending on whether your unit is responsive, use one of the following methods:

✅ Device bypasses code entry and powers up normally.

The is a multimedia receiver often found in modern vehicles like the DFSK EC35. Resetting this unit is a straightforward process, though it may require specific PINs for security or Bluetooth pairing. The Reset Process To perform a standard factory reset on the Grundig GX3800: Navigate to the Setup or System menu on the touchscreen. Locate the option labeled Default or Factory Reset .

Grundig GX-3800 , the factory reset process typically does not require a complex security code if you use the physical reset button. However, if you are prompted for a passcode in the software menu, specific default codes are standard for this unit. thansen.dk Quick Reset Methods Physical Hardware Reset : Locate the small