You may be able to just put the official OTA on your exernal SD card and flash through recovery--not quite sure yet.
I gotta see some of the settings info, so for starters go into your settings->about phone, screenshot the page that appears and also scroll down to any new pages, and post screenshots here.
How to screenshot:
http://xdaforums.com/showthread.php?t=1885386
After that, reboot the phone into recovery following these instructions, and screenshot the recovery screen and post it here also:
Power the phone off and wait about 10 seconds after the screen goes black to be sure it's off->hold Volume Down button, while doing so press the Power button, and release both buttons.
The phone will boot to bootloader, should say hboot up top, and have a little list below it.
If you can't screenshot it via the previous method, note if at the top of the page is says Locked or Unlocked, and if it says "S-Off" or "S-On", and note the version of hboot so you can post the info here.
Use the power down button to highlight the list item "Recovery", and then press and release the Power button to enter the recovery. After recovery loads, note if it returns to a screen just like the hboot screen, or if says in it "TWRP", "CWM", or "4EXT" or any such other thing, and screenshot that or get the info and post that here also.
Now that you've learned what sort of state the phone's in, you can reboot from whichever screen you're on, and have your phone back to normal.
Once you're back with your phone booted, you'll find a screenshots folder in gallery most likely, else you'll have to search the phone with a file manager app or google to find it, but check the gallery first.
After that we'll look for the proper update and update method for you.
Hopefully by then someone else will come along and say something like "All he needs to do is download this "Official OTA" [link included] and put it on the SD card and flash it via hboot"--hopefully, 'cause I may be making this more complicated than it needs to be.
Here, let me repeat that, "Hopefully by then someone else will come along and say something like "All he needs to do is download this "Official OTA" [link included] and put it on the SD card and flash it via hboot"--hopefully, 'cause I may be making this more complicated than it needs to be."