Just a FP2 heads up really - too late for me.
I was at work in the middle of nowhere (very rural) and just couldn’t make a call despite full signal bar. Rebooted. Then a SIM-card fault symbol appeared. Took SIM-card out and wiped it clean. Turned phone back on - time and date were completely wrong. Reset time etc, still nothing. Rebooted - split second red symbol with exclamation indicating 0% battery or something. Phone went into boot mode. Reboot option wouldn’t work. Tried to shut down - warning saying no “OS installed”. Tried the reboot option again - no response. So now couldn’t get out of the boot (safe mode?). Phone froze with nothing responding. Took battery out and replaced and what joy, it has factory reset! All contacts, settings, apps - gone. Not great when I’m in the middle of Bodmin Mood and needing help.
So there’s a problem somewhere. My SMS back-up app didn’t work either.
Had problems ever since the Nougat update. Phone says “emergency calls only” despite still receiving and making calls and texts, phone switching to airplane mode in the middle of calls, random texts saying from unknown sender that are actually from someone in my contacts that I’m already in the middle of a conversation with etc…