I have a MIFI 6620L jetpack and it is only getting 3G or 1X service, but my phone is getting 4G. I did try to reset with taking sim card out and back in, but that didn't work. Do I need a new SIM Card?
Sorry to see that you are not getting 4G service on your Jetpack device. We'll be happy to help. When did this issue start? Where are you currently located?