Xiaomi India — service centre engineer can't find fault

Address:

121006

I have mi note 4 it can suddenly off or hang and heating problem
Service centre engineer can do software
3 time but my problem is not solve.
And now service can take 1 month for mother board change service of mi is very poor so please don't purchase mi mobiles specially note 4 mi mobile also have blasting problem please avoid mi chines products