Thanks a ton for posting this! Unfortunately I got greedy and tried to get this done at the airport before leaving the country Friday night. Trying to download the file from Mega on my phone put me into a small rage as even after trying it 5 different ways and creating a stupid account it still wouldn't just frackin download...
So then being half distracted through a 3 hour delay that saw us board and deboard a plane I used the files drkow19 posted to replace the ones I had for MobileHotspot.apk and .odex. ES File Explorer wasn't working (thought it supported root), so I booted into TWRP, mounted system and got the old files moved (renamed) to .old. I realized these were identical and pointless, but then I finally was able to get through the Mega nonsense before takeoff to download the HotspotProvision apk. While in the air I decided (foolishly) to try and be productive and get this done. However my system/app folder did not have a version of this file yet (apk or odex) and so I searched to see if I'd disabled it, but found no disabled apps related to tethering. So I copied the Provision apk using Solid Explorer as I remembered I had it too and it's root access seemed to be working. After a reboot I figured I'd at least try to enable it (while in the air) and see if the VZW nag was gone. It was! Yay! Maybe I'd try to get a cheap sim if I could find one and really do some fun testing
Except that when I landed I now had a problem. Google Play Music started trying to cache some files as soon as I got on a free wi-fi, but wi-fi kept restarting and dropping
Over the past day or so I've found it's not just wi-fi. Even on airplane mode my phone/apps keep resetting at random times. I'm browsing Solid Explorer and all of a sudden the screen flashes and I'm back to the default location. I'm taking pictures quite a bit and every so often it just blinks and resets my mode. Nova Launcher has crashed a few times and lost it's default designation.
So I removed the renamed files and the HotspotProvision.apk from the system/app folder and restored my TB backup. Still glitching. Wiped dalvik cache, no luck. Using ROM Manager to Fix permissions and it keeps resetting and starting over and over and over.
Someone please tell me there's something easy / obvious I should try. My phone is still usable, but it's becoming infuriating. I've got a TWRP backup from over a week ago (that TWRP tagged as 1970-1-08 for some reason and date modified says 1970-09-01), but really don't want to use it unless I have to (and am slightly worried it won't help). I'll be very grateful for any assistance!
Thanks!
Doug in Iceland