Many of you might want to know the answer to this question. So, if you have faced this situation, you need to update the APN settings. APN Settings of Verizon ● Name: Verizon ● APN: internet ● Proxy: ● Port: ● Username:  ● Password: ● Server: ● MMSC: http://mms.vtext.com/servlets/mms ● MMS proxy:   ● MMS port: 80 ● MCC: 310 ● MNC: 012 ● Authentication type: ● APN type: or Internet + MMS ● APN Protocol: ● Bearer: Hopefully, this will assist you in solving the mobile network not available issue.