Press and specific buttons on the device (refer to the ManualsLib English Guide for exact model-specific keys) while plugging the power back in. The display should show "USB Upgrade" .
Updating the Grundig Sonoclock 890 WEB firmware can fix connection issues with internet radio services or improve stability. Because official support from grundig sonoclock 890 web firmware update repack
If your goal is to fix a broken internet connection rather than add features, you might not need a firmware update at all. You can often reconfigure the existing software: Press and specific buttons on the device (refer
Before attempting a repack: