I have problem with my tronsmart t428

I left my keyboard remote in my 1.5year old doughter acces and she was playing with it.. I guess she accidently pressed "encrypt device" option in settings and pressed any keys combination and the device is encrypted now.. when I switched it on i found " write password to encrypt the device" and cant do anything.
I though flashing Rom might help but Rockchip Batch Tool v1.6 cant see any device...
Is there any way to encrypt it or find out the password or I have to buy a new one?

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