I'm testing pocket shield on my Garmin M10 (WM 6.5.3) to find out if it fits my needs. My phone is very often somewhere in my office or I leave it in another room and I don't want other people to play around with my device. So I'm using the PIN lock feature but I noticed that its sometimes very hard to unlock the device. At least on my device there is no feedback if I key in the PIN so I'm never sure if I pressed a digit or not. It would be great to see if a digit is pressed or not.