Guys, finally I've joined the club.

Got my K3 Note to replace my trusty old Z10. I love BB10 OS but due to some circumstances I just had to be apart and move on with life.

I just wanted a decent phone with good camera capability and the K3 Note didn't let me down.

Now my phone is running stock Android 6.0 (I guess the dealer pre-flashed it for me), stock Lenovo launcher, Blackberry keyboard, and that's it. Not planning on rooting anytime soon.

1st. download app called BlackBerry Manager. You can get it HERE (I don't think it's in the Play Store).
Then from within the BlackBerry Manager you can download the BB keyboard, as well as other BB apps like the Hub, calendar, contact, etc.)