[Fixed] How to update device with 1.0.0.5 in 2016?

Wow. That really shouldn't happen. The idea of a sole spare device is clever, sometimes I also use this tactic.

In fact I only can imagine two things which could break due long time usage, battery and USB-Port. Other physically stressed parts doesn't exist, no fan, no hard-drive or anything similiar. Is it the USB-Port? The battery is replaceable.

Yes in practice the FLASH-Memory could turn into read-only mode after a half million writes +/- x writes to every cell, but I don't think it is possible within a decade.

PS: My USB-Port seems to wear out already and my Jolla is just 19 months old.

You forgot gravitation. I dropped the phone a couple of times (also have kids to do this for me). While it took the shocks pretty good I have a crack in the glass and one of the pins connecting the battery has been pushed into the case so now I often I have reboots through low voltage.

I think I will do some adjustments to the phone, but since I need a working phone I want to switch over to my spare device and use the old one for further tinkering. :)

Oh that dropping thing is nasty. You don't need kids for this. I'm pretty sure that gravity thing hates Jollas in general. The manual should clearly state the a Jolla should be used only on board of the ISS, Sojus and the upcoming Orion MPCV. Look at their old ThinkPads...okay, ThinkPads are blessed ;)