That's interesting. I reloaded and fresh start slow ring, jumped to fast ring and so far has been extremely stable. Dttw and dtts works well.
But yes, when I first got the phone, I found loads of issues until I recovery tool a fresh OS.
http://i.imgur.com/KyyR40P.jpg
This drove me to it
Sent from mTalk on Windows 10 Phone
Hmmm, I've never an insufficient disk space warning before.
I'm quite fed up with W10M and the endless bugs.
Last night I done a clean install from the recovery tool. For now, that seems to have taken care of the black screen/wake issue, however now Cortana won't learn my voice, which is a big issue because I set voice reminders a lot.
I've tried leaving it so that it just responds when I say "hey Cortana" without the voice recognition, but the problem with that setting is that Cortana activates all the time. It's like every time it hears a background noise or someone else speaking it activates.
So basically I've swopped out one bug for another.
I'd give anything for an operating system that just works