I bought my first and also my last xiaomi note phone, now giving problems after firmware upgrade...
me too.
initial usage was excellent.
after six months, the connection was intermittent lose connection.
they replace the mother board, and it run smoothly again for 1 week.
same problem come back.
this time they said they cant replace again as the motherboard is new, they only advised to reset the firmware and monitor.
lan lan don't agree but have to bring back to observe.
bring back home this junk, still intermittent.
send back for replaced again.
they replaced the mother board again.
this time I warned them loudly in public don't try to replace with a recycled piece of motherboard.
run smoothly for 2 weeks.
intermittent problem again.
this time, I no intention to bring back though it is still under warranty.
I suspect is the firmware issue.
this junk don't have a option of chosing whether you want upgrade firmware