H, I have my fairphone now for a bit more than a month. The reboots occur without any regularity and already occurred when I first turned it on, not having any new apps installed. Before a reboot starts, the screen freezes and does not react to any tipping, A few seconds later the phone reboots. The reboots mostly occur when using a program,like navigation, camera or any app. So, I can say in general it occurs more frequently when being in use, let’s say it reboots about 5 to 6 times a day, some days it reboots more often. But I also observed reboots when the phone was not in use, like for instance during the night as I had to type in the pin in the morning.
I changed my sim card, but that did not change the problem. I also reset the phone to its factory defaults settings in hope that might solve the problem. Right after starting the phone for the first time after resetting, the screen froze and shortly afterwards a reboot occured. So, that could also not help fixing the problem.
I also contaced the support team. Untill now, I do not have any response. I hope they can fix the problem soon.