I have bad english excuse me i will try to explain best i can
I have installed that rom on my ace 2 everything works fine but no signal, tried searching phone network manual and automatically didnt work, also noticed airplane mode activate and deactivate random every minute.
My pc had those speakers signal sounds, looks like phone try to send/receive signal then stop without connection.
I have installed official 2.3.6 rom again all works fine signal too.
My phone is unlocked.