Poor call quality, already with light wind

I had a lot of signal problem to with FP4.
Send it back quick if it doesn t work within the 15 days .
I thought mine would improve with some update, but I have signal strength problems. Just send back my phone after 1 month of phone pain :

I would recommend you to test the upload speed on google.
If you get lower than 10MB UPLOAD close to a window or in the city center then send it back :