Many people would answer “No!” or “not a day, but a week” to this question,

However with regard to my smartphone,
The answer is many times a day.
The number of reboot has been increasing day by day!
This model is for overseas,
The quality is not as good compared to Japanese model.
For example, look at the photo,

You can see only “O” , The rest of character have been stripped.

Since I bought this four month ago,
It is early to replace it.

I will try to do something to stabilize this.

One is to replace microSD card.
Two is to initialize it.
Three is to upgrade Android OS from 4.3 to 4.4.

Do you have any other suggestions?