54 SMS related Reboots in 7 days, and I tried alot of fixes. Then I came across Superuser. Unlike my last superuser that only listed ROOT- related apps, this one contains potential nuisances. Such as; Shoprite, Maps and Lookout Mobile security. Seems that all three were set to 'Always Ask' for permissions, but LOOKOUT was denying my SMS and causing the Reboots that I found logged in Superuser. I'm denying Lookout now and it's better. Check your App permissions and actually read your updates! I found an update for an App three weeks ago that read: "Better Ads", so i uninstalled it.