Never found a satisfactory answer. I did find that if a dark surface is placed over the screen (like laying it face-down on a dark table), it will go into a deeper "sleep" and will not come back on unexpectedly. My wife has a V10 also and uses it in a wallet with a cover for the face. She does not experience the same problems. I have tried it with my phone and it works for me, too. I just ordered me a wallet with a screen cover last night. I prefer the phone without a cover but hate the erratic flashing on.