So I am using Safestrap, not sure which one but I know I didn't get it from the Play Store. I am running Nexesque in a second rom slot which is running fine. My stock rom is 9.18.79, so Android 4.1.2 and I would like to try to get newer versions of android if/when they are released for the Maxx HD. When I try to get the next OTA update, it downloads completely and then says update failed. I tried it a bunch of times, got rid of safestrap and unrooted, and it still didn't work. I even did a simulated battery pull and did a factory reset, which wiped all my internal storage but didn't help a bit.
I know I need to flash back to stock but I don't know how to do that with a locked bootlader. Any ideas?