Wink working....ls990
I was able to get everything working on my phone( Sprint varient), and so far so good.
!. Made a nanodroid backup of course.
2. Clean wipe of phone.
3. Flashed kit kat modem.
4. Flashed Vanir KK apn(can't remember where I got them. Had a backup copy. Maybe in the Sprint G3 forms)
5. Reboot, go through setup----->Golden...(hopefully).<-----(make sure to set the apns' in settings)
I'm no expert by any definition of the word. This just happened to work for me. Good luck.
Side note:
If this does not work for you, maybe try doing some build prop edits. That was going to be my next step. I was going to try the same edits I had to do with cloudy 2.5 to get data working. They can be found in the cloudy forms also. This info is for Ls990 users only.
Side note 2: Do not change any mobile network setting. Meaning do not select CDMA only, LTE only,etc...... I did that and could not get signal anymore (don't know why). Had to start from scratch again...stumped with that one.
Good luck x2.....