Okay. here is the problem. I updated my android system for 4.2 to 4.4.4 yesterday. and since that i couldnt download the MSM(eg. picture messeges). I have tried the APN method, it works for sending picture. But After everytime i click the 'download' botton, it wont download (i turn the data on, but it seems that doesnt access to data somehow). And someone mentioned about that i have to have 3G internet to send/receive. But since i already be able to send, should it mean i already have 3G internet.