Please help me i am very sad

We got a chuwi gemibook pro 14" we watched some season and it Shut down. Now its Not workin anymore, i cant reset it or anything Else… It Starts yes but it freeze with a black Screen after 5sec… I got a SD Card with the Windows Software for it but the gemibook pro doesnt detect it. It makes No Sounds. It freeze. Its almost new… But now its Not workin anymore… sad… you need to repair it or send us a new one or Just better get us Back our 300€! ( We live in Pakistan