It started because I wanted a theme, that required CM. So I've browsed a lot of threads and tried some things, and a couple of restarts and factory resets later, it went downhill.
So, P760 20i, running stock 4.1.2, after the last factory reset, I rooted it using this tutorial. I did that in order to install this CWM, to further install CM 10.1, the one I needed. After I did all that and finally booted up in recovery mode, I wiped user data as per instructions in the last link, and when trying to install the ROM, an error felt the need to interfere with my plans. So that's how I ended up with a phone that, if I don't take 3 more pills now, I'm gonna give to the dog to chew on.
It powers on, passes the LG logo, after the screen goes white and it says Under Coding...and the only option is a button to Reset Phone (it's basically a restart phone). A pop-up immediatly appears, saying that com.android.phone has stopped. After I click OK on that it asks for my SIM PIN, it accepts it, and briefly shows a weird, low-res old-looking Android lock screen and then back to the blank screen with another pop-up, asking me about Mobile Networks. That's about all the interaction there is. Click Home button does nothing, clicking Back button just swipes the screen back on the screen, and Menu does nothing. Rebooting from that button is again useless.
That CWM is still there, I can access boot in recovery mode, but to no avail. I've wiped cache, wiped Dalvik Cache, rebooted and nothing. I've tried hard reset with vol down+home then power for 3 secs, release power but still hold down vol down+home until the friendly robot appears, but the result is the same, nothing happens.
During the day I went through more methods, I had a lot of trouble with fastboot which I couldn't get to work.
My question is, based on what I told you, can you instruct me in the right direction ? Also, now that this happened and if it's possible to fix it, could it be fixed with CM installed automatically, or will it be a stock reset and then again back to the drawing board ?
If you need any more details, I'll try to provide, I didn't do much after the last factory reset except for what you see here.