NR,
I have used this solution many times now on both MX64's, Z1's and MX100 with both EE and Vodafone using the Huawei E3372 and its literally been plug and play.
I have just inserted the SIM into the USB dongle and tested it on my Mac and made sure there was no SIM pin and then just plugged it into the MX and "bob's-ur-uncle" its worked.
Where did you get the EE SIM and USB dongle from ?
I got the SIM direct from EE and the dongle from Amazon UK.
When I have inserted these SIM's in other LTE/4G modems / routers the APN's have always self populated.
If you test this on your laptop does it work ?
-Gary
CTO & Solutioneer
CMNA, CMNO, ECMS2
SNSA, SNSP
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