Hi @martinmt ,
first of all I can provide a newer Bios ( V 1.13), which can be downloaded here and is to be run via the device manager. Unzip the downloaded file, open the dev man(see similar pic below), move to the category Firmware, then System Firmware and choose "Update driver"
Nevertheless reading your report it might turn out to be a complication with the internal keyboard controller or alternatively an internal cabel, thar leads to the issues.. Did you already perform a test with the MEDION Service APP ? Before sending it in, you also could reinstall the complete system, but in case an ext. keyboard is working wel I´d rather assume this to be a hardware problem.
Cheers
Major ToM
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