Drivers and bios can be found on the clevo website (warning flash the bios at your own risk) i own the x7853 (gtx1070) ver and have had no problems as of yet i downloaded a full driver package from clevo also updates can be found at medion.de (hope this helps)
Thanks for the tip, not sure if we tried Lenovo drivers or not. Tried many things between us. I thinks he has binned it but if he has it then worth a try. However it wasn’t just us having issues. I’ve had loads of laptops over the years and never had trouble like this with any of them.
The X6603 is a Lenovo Y520 with a Medion badge on it (Lenovo bought the German company a few years ago). If Medion updates aren't forthcoming, then trawl the Lenovo drivers web site and that should sort you out. I've had a hand in buying four Medion laptops in the past and I've never had anything like the problems your Dad has experienced. They've all been terrific little machines considering that they've all been as cheap as chips! In fact the laptop I had most driver problems with was a Dell Inspiron which refused point blank to let me update the GPU driver.
Unfortunately with first hand experience and wasting hours on forums this is not always possible. My dads Medion laptop developed a WiFi issue where it would cycle on and off permanently following a Win 10 update. This wasn’t an isolated case, many reports online yet 6 months went by and nothing from Medion. The forums showed this is normal for Medion, once a model is no longer the latest they stop bothering with updates. My dad cut his losses and bought a Lenovo.
If we were talking about a phone would agree, but 99%of drivers can be sourced from manufacturer or a 3rd party manufacturer. Using a lenovo WiFi driver in my acer for example