Hey CT,
So I have a newish phone (Samsung Galaxy S4) which works perfectly, I can build and run to it with no problems.
I have also an old device (Galaxy GIO) which used to work.. but doesn't any more.. I've just noticed as I'm typing this post that the minimum target is Android 2.3 .. has this always been the case or has something changed? because I was building to this phone and it was working a few weeks ago. (this phone is Android 2.2.1)
When I build and run, Fusion loads for a while... then nothing happens and eventually the build finishes with no errors and it installs nothing on the phone.. If I try to manually install an .apk it says "failed to parse the package"
UPDATE: I rooted the old device and updated the OS to 2.3.1 and the build and run/apks work again for this device. So.. I guess nothing to see here.. though I'm still curious when the minimum target device was increased? cheers!