I've tried asking this in the q&a section on the main thread but I think I'm being ignored because I'm asking a question about the at&t version inside a Verizon thread. Idk. But I've tried installing hyperdrive rls15 and I follow the instructions on the main page for at&t and I get to where I need to reboot and wait 10 mins. Well it just stays on the splash screen. I've tried repeating the install 4 time's now amd the same results. I found a tooic saying fix permissions but it fails. I'm sorry if this has been asked already. I have looked through several different threads but I may have overlooked it. My phone baseband is I337UCUAMDL im on 4.2.2 and have twrp v2.5.0.2 as my recovery. I've also verified the md5. any suggestions?