I'm so upset, gone into at&t store they replace sim card on my note 5 still doesn`t work I can receive pic and messages but when I want to send only pic or with messages it wont go through so I read some where if you restart your phone it will work ,,yes it does but for petes sake I cant keep doing that on every pic I want to send , also I went and got the app Textra it work for awhile now that wont work , so I don't know what to do at&t said that I might need a micro cell tower for more signal ,money down the drain ! my problem is this phone so expensive and I can`t even send pic. I`ve been with at&t tech. even Samsung up grade a new software on my phone to see if they can fix it but nobody knows. I thought maybe somebody knows whats going on with this crazy note 5 . or having same issue like me ,