Iphone 4s A1387 Factory Unlocked

to config cellular data on iphone 3gs factory unlock on t mobil network ;APN epc.tmobil.com,on mms ,APN WAP.INTERNET2VOICESTREAM.COM USERNAME AND PASSWORD LEAVED BLANK ON MMSC TYPE and on mms proxy type 216.155.165.50:8080 on mms max message size 1048576 on the mms ua prof url type after these settings reboot the iphone.now u will be able text am mms messages.

Iphone 4s a1387 factory unlocked