*SOLVED* EM7455 unable to enable

IoT Modules
9

the root cause is on the at!impref where carrier name and config name are mismatched.
Did you try the latest FW by EXE file on release 27?

https://source.sierrawireless.com/resources/airprime/minicard/74xx/airprime-em_mc74xx-approved-fw-packages/#sthash.5UvYJ9Qk.dpbs