This has happened on 2 of my 4 replacements.If you have your information synced to your computer go to page 126 of your owner manual and do the hard reset. You will be set back to the factory settings but you will be able to use the phone....The above should reset the phone if you don't have the manual with the power off hold the down volume button and then the enter button (center part of the circle) at the same time with both pushed in hold the power button until the reset screen comes on. If you were unable to turn off like me remove the battery and put back in place this will do the trick. This will then give you the option to do a reset. When the phone turns back on it will be at factory settings Hope this helped Sprint needs to step up and either fix the phones properly before sending out the replacement or offer a comparable replacement not a downgrade they act like we bought a cheap phone and are now wanting something for nothing i am quite frankly tired of getting refurb phones that don't work. This phone was their highest priced model when i purchased mine in January of this year 5 phones now and till having issues i'm about over sprint and this issue im tired of not having a dependable phone and get 10 different answers from 10 different reps.
