NOTE THIS ONLY APPLIES TO THE L900 NOTE 2! I figured I'd post it here since it has to do with the Update profile/PRL/HFA fix.
I flashed a guy's Note 2 the other day (Sprint>Boost) and he went ahead and did a ##72768# like a ****ing moron. It had a HFA loop, but I remember that as long as you enter a MDN and MIN on 4.3, it'll cure it...if you DIDN'T enter the dialer code mentioned above. Apparently that code does more than corrupt the carrier partition, because I rooted the phone, copied the files from my L900 to it, rebooted it, and expected to win. A facepalm was seen at the end of this tunnel instead. HFA loop waiting for me with open arms.
Figured I'd go back to what I know, which is going back to LJC and running the flashable carrier fix. It's worked before when I've run into HFA nags, it should work again. I used
@billard412 's MC2 "Back to UNROOTED Stock with Auto Flash Count Reset" (
http://xdaforums.com/show...php?p=36388145). It's a .zip file you can use in a custom recovery to overwrite the 4.3 firmware (INCLUDING THE BOOTLOADER!!!!! THIS IS HUGE HERE!!!).
After using this, I had to repackage the LJC firmware because it failed at sboot. Fair enough, I ripped the LJC file apart and inserted the MC2 sboot file into it and made it a tarball:
https://www.mediafire.com/?6p9hrhq935t7io2 (you can flash this in Odin 3.09 in the AP tab. NOTE THAT YOU CAN ONLY DO THIS ONCE YOU'VE DOWNGRADED FROM MK4 TO MC2. IT WILL FAIL FAIL FAIL IF YOU TRY TO GO STRAIGHT FROM MK4 TO LJC!). It will succeed. If it doesn't, you DID NOT DOWNGRADE FIRST; READ ABOVE. Once you're on LJC, you're going to need to load a custom recovery again, and apply the LJC carrier fix from:
http://xdaforums.com/show...37276600394398 (I also applied the LK8 fix:
http://xdaforums.com/show...80219633691012 as well, but it's probably not necessary). At this point you SHOULD be fixed, and the HFA nags should be gone, right?
Mine weren't. I applied both patches multiple times, getting angrier every single time. I found a link:
http://xdaforums.com/show....php?t=2062499 that says to do the hands free activation. So, I made a boost mobile account for it, chose to pay later, did the ##72768# reset and tried to activate when it booted back up. It mentioned something weird about "Writing Data" in the activation window, something I've NEVER seen before, and actually went all the way through. Press Done, and it'll reboot. You have no more HFA nag. From here you can upgrade back up to MC2 or MK4 (or whichever firmware you want to be on. Keep in mind you're still on the MC2 bootloader with the rest of the firmware being LJC. If you want a "clean" device I suggest flashing back up to MC2 or MK4).