[Q] AOSP keyboard update (from F-Droid) topic

Dear all, first of all...

HI! :D

I just registered (also after the call to arms on the original infinite thread about FP), so...

Then here is my question (that I think many already asked themselves): how to update the AOSP keyboard (4.2.2 -> 4.4.2) from F-Droid?

Problem: just doing it doesn't work, since the signature is different.

Solution 1: unistalling directly the keyboard is not possible, since it is a system app ==> FAIL

Solution 2: with system/app mover I moved the app in order to be able to uninstall it ... but it actually just disappeared :eek:
The app just doesn't exist anymore. Not too bad I thought. Problem is I can't reinstall it from F-Droid: everything looks smooth until I get a straight "Application not installed". I already rebooted and cleaned the caches. ==> FAIL again

So.... any idea?
Thanks in advance at least for reading.


P.S.
Where do I add a signature? I would like to say everywhere that I am NOT using the google apps ;)