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- Sat Jul 31, 2021 9:04 am
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Re: MoFi 5500-7690, AT&T, No 4G Internet, only WCDMA 850
Update: After hours of troubleshooting, investigating, speaking to dozens of AT&T Reps. Advanced Tech Support, etc. the MoFi 5500 EM7690 does indeed register on AT&T's network as a Mobile Device (Phone), not a Data Only Device. If you use any kind of Data Plan it will not work. Nothing in AT&T's Pre ...
