Updating EM7455 (in Ubuntu 24)

[jyijyi]

you might have a look on this user who can make it work:

Updating EM7565 on openwrt

So here I’m necromancing this post for whoever might be stuck trying to upgrade a Sierra EM7455 Modem. So I got an old Dell DW5811e card, which i first made recognize as a Sierra MC card using the following AT commands: Using picocom to connect to the serial port of the modem # picocom -b 19200 /dev/ttyUSB2 run these commands AT!ENTERCND="A710" AT!USBPID=9071,9070 AT!USBVID=1199 AT!USBPRODUCT="EM7455" AT!PRIID="9904802","001.001","Generic-Laptop" AT!RESET Now the modem identifies as a non …