That's a very detailed review, thanks.

Do you know any way to root and/or install a custom rom in this model ? thanks.

another smartphone device presentation where the GPS receiver part is incorrect. As I could see in the photo from the article when the device is outdoors, this model can also support Galileo satellites

I see with great sadness, the article writer does not learn from his mistakes, nor from the advice of the readers I personally have recently make, but also in the past.

STOP the use of this past decade's Chartcross GPS test application. Sean Barbeau's modern GPSTest application, can even help the beginner to directly recognize (by the flags) the types of all satellite systems but also the bands of frequencies from our device that can or not to recognizes.