My friend just updated to the newest fancy Iphone for her and her 2 teens -all were having problems. Phones were bought at Walmart. They could not resolve the problems and would not take them back-they suggested she mail them back to manufacturer. 4-6 wks w/o phones seemed extreme. So off too Verizon where she traded these in on new ones at only 1.89 each and her plan for all 3 lines is only $90 ='s a $45 savings per month and they waived the connection fee's on 2 phones. unlimited every thing and after 2 weeks they have not had any problems. Verizon guy said that phones bought at dept. stores are not the best off the assembly line and when buying any electronics at WM to check to make sure they are not ''refurbished''