New hp ady faulty? Any other ways check it out, only have 1 sim card currently..

Just start of this year.
Well that time when she wan to change to Oppo R7s I'm against to it lol
It just overpriced with the specification it have while not giving the after sales support like firmware update etc, but then since that time my little sister working part time as Yes promoter with selling Oppo phone so end up she goes to buy it.
And I can say that the UI is very laggy
Well I just said change when ur phone spoiled first la, since she just bought start of this year 

Well atleast it just better than Oppo, xiaomi phone is my kind of last choice if currently all the phones that I looking to it is overpriced/no stock if ngam ngam my phone is spoiled on that time.

I'm switched from Xperia Z3 to Mi 5, my Xperia Z3 network start to have problem for two years of usage as it frequently not ringing my call even it's show having signal then the missed call SMS still shows up afterwards. Also after Marshmallow update the memory management become very poor and keep kill my messaging apps so most of the time I only received the notifications for those messaging apps like Line, Whatsapps, WeChat after the message is been sent to my phone half hours ago, but then it's still a good phone for serving me two years.