Well Im glad this post is still open. I had the same problem and while taking a few days to try their suggestion they closed my post down. S4 lollipop loses signal in building and never recove...
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Well Im glad this post is still open. I had the same problem and while taking a few days to try their suggestion they closed my post down. S4 lollipop loses signal in building and never recovers S4, looses signal in my work building and never recovers. Needs reboot. Same as you guys. Although, testing the last week in LTE/CDMA mode seems to be better. It hasnt locked me out yet, but it doesnt seem like a real solution. I may have just been lucky though during this time and have moved by a window or something that caught enough signal to keep it connected.