Relating to “random reboots” we just recently helped some other user in this case.
It was the third (replaced) FP2 with random reboots. Hope was almost gone, but it showed that the problem was also some interference with a wifi network access point. At last the FP2 was working ok and the problem was not entirely FP2 related.
This case changed my overal point of view that not all troubles with the phone are purely caused by the phone itself and also more focus has to be put on unexpectedly external conditions.
I have phone no.9601 and it works flawless.
We also had a topic about this shortly.