Grundig Sonoclock 890 Web Firmware Update RepackFortunately, updating the firmware—or using a community "repack"—can fix these connectivity issues and improve stability. Why Update? : Connect the device's USB (Type B) port to your computer using a standard USB cable. grundig sonoclock 890 web firmware update repack A verified repack will contain these files: grundig sonoclock 890 web firmware update repack |