Hello, I got a EM7455 on an M2 adapter in a housing, and managed to update it with SWI9X30C_02.38.00.00.cwe and SWI9X30C_02.38.00.00_GENERIC_002.082_000.nvu. Initially it was showing this: OK AT!ENTERCND="A710" OK ? DW5811e Snapdragon™ X7 LTE OK AT!USBPID? !USBPID: APP : 81B6 BOOT: 81B5…

see if this helps: [image] Em7430 no com port after vid:pid change MC/EM Series well, i have flash your .nvu with lastest generic .cwe. still cannot fix this problem. so i have brick this module. good bye 8$ laughing

Thanks for the hint, but alas - tried a few different driver versions under WIn10, and always getting an unrecognized device em7455 (actually 4 of them). Also, none of the generic windows drivers was accepting a parameter of DisableUsbCompAutoUpdate. Maybe it’s just Windows disliking me, or I’ve spe…

Boot your Ubuntu 22.04. Don’t mess with any out-of-tree drivers. Just load option, configure it to handle the weird VID/PID you’ve got, connect to the correct /dev/ttyUSBx device and fixup the AT!USBPID and AT!USBVID mess. Something along modprobe option echo 1199 81b6 > /sys/bus/usb-serial/driv…

EM7455 stuck with no tty nor cdc-wdm devices

IoT Modules

jyijyi November 18, 2023, 4:31am 2

see if this helps:

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EM7455B missing /dev/ttyUSB MC/EM Series	11	652	April 3, 2024
EM7455 ccid driver IoT Modules	7	462	January 15, 2023
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Em7430 no com port after vid:pid change MC/EM Series	43	2407	May 16, 2025
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EM7455 stuck with no tty nor cdc-wdm devices

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