Hi
My FP1U got the power button-desease as some other owners have encountered. I have done attempts to rescue my dear little fellow by resoldering a new button without any success. So apart from the power button everything worked fine until December 2017. I have two batteries that still have some life I think.
The phone is in Gothenburg for some more weeks but will move to the north of Sweden soon. If you pay Santa or some other carrier service everything is for free.
You may e-mail me at; mattias.zetterberg@gmail.com