F-Droid 0.91 disappears after being installed as system app on cyanogenmod 12 I tried to install F-Droid (0.91) as system app on Cyanogenmod 12. The installation succeed but after that the F-Droid icon disappears.

Of course i tried to restart more times, i tried also to reinstall F-Droid as standard app from an apk but it crasches when i try to start it... probably for a conflict.

Someone knows if i can try something, i.e. where i can try to find the executable?
You can solve that as follows:


Completely delete the old F-Droid app (e.g. uninstall using Titanium Backup)
Get the latest .apk from F-Droid and put it on your device
(either download directly with your Android web browser, or use adb push)
Login to your device either via a terminal app or using adb shell
Obtain root privileges by executing the command su
Make sure to have the /system partition mounted read-write

mount -o remount,rw /system

Now get the downloaded FDroid.apk to /system/app. Change to the directory you've downloaded/pushed it to and run:

cp FDroid.apk /system/app

Secure your /system partition again

mount -o remount,ro /system

Reboot


Now F-Droid should be available to you again. Enjoy the great pool of open source Android apps!