I recently switched from an s3 to an s5, because my s3 started acting crazy, but for some odd reason my s5 that i bought off of an individual,who had no problems with it will do anything and everything text,surf,email just won't make or receive calls, been to Verizon, best buy, and back to Verizon who said they would get back to me within 48 hours. That was 6 days ago. Can someone please please help