Alright guys, this is gonna be kinda long so get ready. I was running stock 4.4.2 NEW and I saw that there was a way to get GPE 4.4.3 and 4.4.4 rom working on the s4. I followed all the instructions on RickGrimes's post and wifi didn't work. Not and big deal. I couldn't soft reboot, so I tried flashing gogolies nc2 wifi fix and this modem worked. I then tried to update to 4.4.4, also following the instructions and the wifi didn't work once again. I flashed gogolies nc2 wifi fix again but it did not work. I also realized that I had no service at all and that I couldn't send or receive any messages or calls. So I did the safe thing and used Odin to get back to stock. I am currently running stock but the service is still terrible in places where I usually get great signal. Also, my wifi strength seemed to go down from what it usually is. Another issue is that my contacts that were backed up in backup assistant aren't there anymore at all. I generally know what I'm doing when it comes to this stuff but for some reason I have no idea how to resolve these issues. Any help will be appreciated.