Why can't I hard reset my tablet?

Hello guys.

My sister tried to upgrade android but failed to do it. Now tablet is stuck on Android upgrade logo and won't start. When i connect charger it automatically power up and i can't press Power Button and Volume Up so i can't get to screen where i can pick Factory Reset.

So basically: 1) Tablet power up, 2) Gets to Android Upgrade logo, 3) It stays for 1-2 min, 4) Restart and all over again until battery dies then he turns off.

My question is: Is there any other way to factory reset my tablet? I know that this is just software issue but i can't find any answer on google.

Thank you guys in advance.

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