I have a rooted LG Optimus L1 ii, running the stock 4.1 ROM that came with it, from which I uninstalled the stock messaging app after installing Hangouts. As you might have guessed I was unaware that the stock messaging app contains the basic messaging capabilities and all other apps rely on this, so now I'm trying to somehow regain the ability to send and receive SMS.
I have tried installing Handcent, GoSMS, and an app called "Android 4.1 JB Messaging SMS", which claims to be the stock messaging app for JellyBean, all of it to no avail.
Therefore my question is, on a very fundamental level, what are the parts of the Android OS that are required for SMS and that I evidently destroyed? Can I get "generic" stock versions of the necessary apks or do they have to be specific to my phone model?
Any help is greatly appreciated!