How do I get my Huawei Mediapad resetet?

I have a little problem.

My Years Mediapad 3 has surfaced again, but I know neither password nor something about it, it goes on and there's a password display of which unfortunately I have no idea.

If I want to reset it (sound + quiet + power button) comes to 5% charge

, Software install failed! The update package does not exist. Please download the package again. "

But how do I get a software on it without a password?

If I want to reset it

Did you choose "Wipe data / factory reset" in the recovery menu?

https://www.hardreset.info/devices/huawei/huawei-mediapad/recovery-mode/