I have a MC7455 ， due to configuration（at!usbcomp） errors, resulting in no ttyUSB2 , so i can not execute the AT command, but i can upgrade the firmware, What can I do to restore the factory settings。
Thanks.
Hi,
What USB combination you used?
What are all port are you able to see??
If the module is in MBIM mode then you can refer [url]https://forum.sierrawireless.com/t/my-mc7710-cant-work-on-linux-after-plug-in-it-to-windows8/7986/1]
-Alex