cannot use the internet on your S4? Then you may want to add or update your Samsung Galaxy S4 Straight Talk APN Setting, following these steps:
Steps to Setup Straight Talk APN on Galaxy S4
1. From you home menu, go to Settings icon.
2. Go to Connections
3. Go to Mobile Networks
4. Go to Access Provider Network (APN)
5. Tab menu or three little dots and select Add New, input the information below
Depending on the Straight Talk service you have, you may choose one of the following two options:
Samsung Galaxy S4 Straight Talk APN Settings for AT&T
Name: straight talk
APN: tfdata
MMSC: http://mms-tf.net
MMS proxy: mms3.tracfone.com
MMS port: 80
MCC: use default
MNC: use default – Do not changed MCC or MNC info
Username: “leave it blank”
Password: “leave it blank”
APN type: default,mms,supl
Samsung Galaxy S4 Straight Talk APN Settings for T-Mobile Network
If you are a Straight Talk user through T-Mobile Network, you should use the following information:
Name: straight talk
APN: wap.tracfone
Port: 8080
MMSC: http://mms-tracfone.com
MMS proxy: “leave it blank”
MMS port: “leave it blank”
Username: “leave it blank”
Password: “leave it blank”
APN type: default,mms,supl
Save the APN, select it as default one, reboot the phone and you should be ready to go!
If you don’t know which one to use, please check this Guide to determine correct APN Settings for straight Talk or if you are having issues with MMS (picture messages) take a look at this complete Straight Talk MMS Fixe guide