# Multiple module firmware update

**URL:** <https://forum.sierrawireless.com/t/multiple-module-firmware-update/21744>\
**Category:** IoT Modules\
**Created:** [October 8, 2020, 12:47pm UTC](https://forum.sierrawireless.com/t/multiple-module-firmware-update/21744 "2020-10-08T12:47:19Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**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:** [October 9, 2020, 3:51am UTC](https://forum.sierrawireless.com/t/multiple-module-firmware-update/21744/2 "2020-10-09T03:51:31Z")

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From the application note below, I don’t see it can specify the com port number:

[https://source.sierrawireless.com/resources/airprime/software/fdt/#sthash.sJcDASwB.dpbs](https://source.sierrawireless.com/resources/airprime/software/fdt/#sthash.sJcDASwB.dpbs)

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