I also don't know what's the exact issue. On the older Android tv it is working fine but on Mi Box 4k it's giving same tampering error.
same for me too. no solution found till date
Guys i also have Mi Box 4K. I have solved this problem by Factory Reset. Do Factory Reset your Mi Box 4K from Settings & Then Again Install Pikashow. It will definitely work.
What is pikashow apo?