OK.. You messed up on that one by leaving the Boost SIM in and updating. If you've read the posts well, you'd notice that people actually removed the Sim before 1st boot and installed their Carrier's Sim and then unlocked bootloader/Flashed ROM.. Always READ-READ-READ and double check, sorry..
The XDA thread emphasizes that one must first activate the carrier account. The first post in the thread says "Have stock ROM installed and data provisioned correctly. This is an important step to have any chance of LTE working for your device." There is more discussion of this throughout the thread.
I did not see anywhere on that thread, to take the carrier SIM out for this hack.
I've seen it, e.g., in E4 Verizon unlock threads.
Upvote
0