I have found the PERFECT SETTINGS for the locked OR unlocked T-Mobile Galaxy SII SKYROCKET, that is having trouble getting DATA or sending/receiving MMS. APN-straight talk or STRAIGHT TALK IT DOESNT MATTER.
APN SETTING -wap.tracfone
PORT - 8080
MMSC -
http://mms.tracfone.com NOW THIS IS THE IMPORTANT PART. DONT HAVE SETTINGS FILLED IN ANYWHERE ELSE. IF THEY FILL IN ON THEIR OWN LIKE MNC & MCC THEN LEAVE THEM ALONE. Just dont fill in anything else yourself.
HIT THE SAVE BUTTON UNDER MENU Dont worry about deleting the old TMobile settings, just make sure the green button next to your new settings is checked. NEXT
IMPORTANT PART #2 HIT THE BACK BUTTON
TWICE AFTER YOU HAVE SAVED YOUR SETTINGS, YOU WILL BE AT A PAGE THAT HAS USE PACKET DATA / ROAMING , ACCESS POINT NAMES, NETWORK MODE THEN
NETWORK OPERATORS CLICK ON NETWORK OPERATORS then select
SEARCH NOW...After you click on this it will do a search for a few minutes . It will come up with the choices AT&T and
T-MOBILE SELECT T-MOBILE When you do you may see the Network mode grey out for a few minutes. It should say
GSM ONLY under the Network Mode. You shouldnt even have to turn off your phone everything should work right then and Fast. Before I figured this out I could not send or get MMS or get online without WiFi. Good Luck and I hope this helps you all who have this same trouble.
i ALSO TRIED THIS IN A aATT GALAXY S II. I USED THE SAME 3 SETTINGS EXCEPT USING THE MVNO,CINGULAR SETTINGS. I did not put the ip addresses in where the recommended straight talk settings say to. repeat the same SAVE process , then go to the page on your phone where the network operators are listed. Do the same process, but for your phone select ATT as your network operator.Again the network mode should say GSM only. Go out of your settings and use your phone. Both these phones were unlocked that I used, but they dial a specific number internally to send an MMS. To get online there is also a specific web address. If each phone is set to the wrong network provider (ATmobile set to an ATT network provider, it throws everything off and will not work..Anyway, if your phone is working, great. If your STRAIGHT TALK ATT OR TMOBILE PNONE IS NOT WORKING CORRECTLY...just try this. What have you got to lose?