First, I think I have a Rugby Pro - SGH-1547. Don't know if that is a Rugby Smart or not. I began having 3 problems (symptoms?) about 2 months ago. Don't know if it's actually ONE problem or not but I'm going to describe all 3 in case they're related. Slow - Often, when I try to turn on my phone in the morning, I must hit the power key every few seconds for 2-3 minutes. Swiping to a new screen can take 2-3 seconds to respond and another 5-7 seconds for the icons to populate the screen. Opening apps like Evernote or Amazon AppStore can take 5-10 seconds to open - sometimes 30-60 seconds with a black screen during the interval. I've rebooted. I've tried memory boosting apps - no change. (In my web search, I've read many articles claiming this wouldn't work). I've cleared cache. I've uninstalled some apps. Nothing worked. Battery - Since buying the phone, I've rarely needed to recharge my phone during the day. One charge while sleeping was sufficient. Recently I've been charging my phone 3x/day. It seems battery usage is 'normal' from 100% to about 80%. After that it can lose 20% in an hr while the phone is off and in my pocket. Bought/installed a new battery. No help. SMS - When I create send an SMS, I'll get the 'working' icon that will spin for minutes - I turn the phone off and go about my day. Often, 2-3 hours later (no exaggeration), I'll get a response from the recipient who 'just got' my SMS. I've done some searching here and on the web, tried a number of things, but nothing has helped. Guidance please.