I've been putting of this question for as long as possible, but the time is now here to accept that Windows Phone is perhaps dead.

My Lumia has decided to start rebooting randomly throughout the day (and night). This results in a 'charging' sound every time it restarts if connected to the charger, and a loud notification telling me about some messaging feature which has been in the OS for months if not years. This wakes me up at night (if the vibration doesn't manage to - light sleeper), and is inappropriate at other times.

I am a bit of a cheapskate when it comes to phones. I only run three apps on my Windows Phone (jokes about lack of software support aren't appreciated) - SoundHound, FlightRadar24 and Edge, so my requirements aren't exactly great. I doubt I'd do much more with a new phone, so I don't need anything fancy... an OLED screen would be nice though.

I currently own two Android devices... one television where I use a grand total of zero features, and one X96 media player which came with Android installed, and was immediately flashed with CoreElec as soon as I confirmed the hardware booted. In other words, you can assume I know basically nothing about Android and what to look for in a phone. I am informed they all look completely different however, so I would prefer something that can be easily flashed with a custom ROM. That way my next Android phone can look exactly the same as my first.

Recommendations would be appreciated.