Grundig Sonoclock 890 Web Firmware Update Allein Belafonte Int Top May 2026

Grundig Sonoclock 890: Updating Firmware via Web Interface

Here is a step-by-step guide to performing the web firmware update.

Tips and Precautions

Here’s a short piece inspired by it:

A. Alleinwecker (Single Alarm Mode)

• Ignore it if the radio works fine – it’s not a bug.
• If you want to stop it, switch to FM or a different DAB station.
• Do not attempt a manual firmware update – none exists. Resetting the device (unplug 1 min, replug) clears temporary glitches.

2.2 Correct Update Procedure