I couldn't get the HP toolbox to recognize the novacom driver / service, even though I could run acme and communicate / query the TP.
Anyways, was running 4.4.2 can't remember which build. Updated to the jscullin 4.4.4 6/25?
Reading through the forums I didn't really see many instructions for this update path. Ended up copying the install .zip to the TP and ran install .zip from clockworkmod in the boot menu. Figured they were both 4.4.x and this shouldn't be an issue.
After the .zip load the TP booted and updated android with no problems. Optimized apps ect. When I logged in I had a few app updates but nothing major.
Impressed with 4.4.4 so far. I use chromecast to watch football (american), and it works flawless. Not a Netflix fan so no comment, although I think it would work fine since watchespn / YouTube cast w/o issue.
I don't use Bluetooth so...
Seems stable, not a single freeze or anything like that.
Just wanted to say that a "dirty" flash from 4.4.2 to 4.4.4 works fine, at least for me and I didn't need to restore all my apps etc.
Been running android on this puppy for a few years now. Had access to an "early" device.