I have a 2015 Shield. Best device I’ve ever had, and haven’t ever had to factory reset it.
My main recommendation - in case it applies to you - is to not run any server software on it (eg. Plex). It’s a solid client device, but has never had what it takes to run server services.
I think it has plenty of life left in it, so a factory reset might be worthwhile. Also note that the drive in yours may be well past its best.
I have a 2015 Shield. Best device I’ve ever had, and haven’t ever had to factory reset it.
My main recommendation - in case it applies to you - is to not run any server software on it (eg. Plex). It’s a solid client device, but has never had what it takes to run server services.
I think it has plenty of life left in it, so a factory reset might be worthwhile. Also note that the drive in yours may be well past its best.