I have a weird pronlem that I really need help with. I like to switch back and forth between aosp 4.4 and S3Rx 4.3 amd i have issues sending messages on S3Rx. Whenever im using any 4.4 rom I send and receive mms messages just fine with no problems using google hangouts but whem im back on S3Rx using stock and go sms I can't send any picture messages but I can receive them. I dont understand the problem amybe uts an incorrext apn setting on S3Rx but I really need help fixing it. I have the T999N for metro so if u have a t999n and use S3Rx and youre able to send mms messages please assist me. Ive tried on wifi and lte