# Unable to Update Firmware on EM7305 **URL:** https://forum.sierrawireless.com/t/unable-to-update-firmware-on-em7305/27590 **Category:** IoT Modules **Created:** [August 4, 2022, 9:59pm UTC](https://forum.sierrawireless.com/t/unable-to-update-firmware-on-em7305/27590 "2022-08-04T21:59:21Z") **Posts on this page:** 1 **Showing post:** 4
### Author: ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi) #### Post date: [August 5, 2022, 1:09am UTC](https://forum.sierrawireless.com/t/unable-to-update-firmware-on-em7305/27590/4 "2022-08-05T01:09:29Z")
not sure if this helps you to get back the AT command port: > [@My MC7710 can't work on Linux after plug-in it to Windows8](https://forum.sierrawireless.com/t/my-mc7710-cant-work-on-linux-after-plug-in-it-to-windows8/7986/17): > > After playing with the device, switching it between a linux and windows 10 environment, I found a temporary fix that alleviated my frustration for the most part with windows switching the device to MBIM only. As it seems that the OS has a preference for MBIM, this fix will direct the OS to use USBCOMP 8 (DM, AT, NMEA, MBIM) instead of defaulting to USBCOMP 9 (MBIM) when the system finds the device with a QMI interface. (My laptop is dual booted with Linux and windows, if i forget to change my co… --- _[View the full topic](https://forum.sierrawireless.com/t/unable-to-update-firmware-on-em7305/27590)._