Boot issue Erazer Crawler E30e

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Hello everyone,

I have a medion Erazer Crawler E30e Laptop

MSN: 3003 6600

Since Yesterday, It does not respond at all when I press the power button, no led on, no fan spinning, nothing

There is just the orange led telling me that it is charging.

I think my windows updates included a bios updated. Could it be that it has somehow corrupted the bios?

Also I tried to disconnect the battery for a few hours to try to reset the bios (I havent found a small battery though, I think there is none in this laptop), but it did not solve this problem

Is there something else I can try before sending it for repair? (it is still under warranty)
Like maybe a secret mode to reflash the bios from a usb key or something like that?