# Firmware Update

**URL:** <https://forum.sierrawireless.com/t/firmware-update/957>\
**Category:** Open AT\
**Created:** [December 21, 2006, 9:30am UTC](https://forum.sierrawireless.com/t/firmware-update/957 "2006-12-21T09:30:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![VeeKay](https://avatars.discourse-cdn.com/v4/letter/v/e19adc/32.png) [@VeeKay](https://forum.sierrawireless.com/u/VeeKay)\
**Post date:** [December 21, 2006, 9:30am UTC](https://forum.sierrawireless.com/t/firmware-update/957/1 "2006-12-21T09:30:10Z")

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Hi All,  
I am new to OPEN AT and need to know, is there a way to update the firmware/application (.dwl) on the modem remotely?

I have a application (.dwl) installed on Modem. Every time the modem is restarted, it should check for new version of this application on the server and if there is one available, it should replace the older version with new version and then restart itself. Is it possible to achieve this?

Any pointers would be highly apprecaited.

TIA,  
VeeKay

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**Author:** ![gdt](https://avatars.discourse-cdn.com/v4/letter/g/7993a0/32.png) [@gdt](https://forum.sierrawireless.com/u/gdt)\
**Post date:** [December 21, 2006, 10:12am UTC](https://forum.sierrawireless.com/t/firmware-update/957/2 "2006-12-21T10:12:19Z")

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Hi VeeKay,

It’s possible. Just need several lines of code to be reliable. Some bugs are still present in openat 4.10. (no reset after install etc…) but you can find a workaround in this forum.

Best regards,

gdt

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**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\
**Post date:** [December 21, 2006, 3:46pm UTC](https://forum.sierrawireless.com/t/firmware-update/957/3 "2006-12-21T15:46:36Z")

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> [@VeeKay](#):
>
> is there a way to update the firmware/application (.dwl) on the modem remotely?

Yes, that is exactly what DOTA is for!

> [@](#):
>
> Any pointers would be highly apprecaited.

There is an example application on your Open-AT CD.

However, see [wavecom.com/modules/movie/sc … light=dota](http://www.wavecom.com/modules/movie/scenes/forums/viewtopic.php?t=770&highlight=dota)

> [@I](#):
>
> To be honest, I found the Application Download sample to be grossly overcomplicated, and its XMODEM protocol implementation has several serious flaws.
> 
> You could study it to get the idea of how to do DOTA, but you might find it easier to start from scratch for your own application…