# Download error

**URL:** <https://forum.sierrawireless.com/t/download-error/819>\
**Category:** Open AT\
**Created:** [October 30, 2006, 4:41pm UTC](https://forum.sierrawireless.com/t/download-error/819 "2006-10-30T16:41:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hslai](https://avatars.discourse-cdn.com/v4/letter/h/85f322/32.png) [@hslai](https://forum.sierrawireless.com/u/hslai)\
**Post date:** [October 30, 2006, 4:41pm UTC](https://forum.sierrawireless.com/t/download-error/819/1 "2006-10-30T16:41:07Z")

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Hi,  
I am using Q2406B and testing the sample Application\_Download.

I can manage to execute the program and FTP sample applications ‘Telemetry’ and ‘Hello\_Word’ from the FTP server. However, after the module reboot, it prompted ‘Download error’ and the downloaded applications were not installed.

I wonder if it is because the sample applications will replace the Application\_Download in the memory so that it refuse to install them?

What I actually what is to add a new application to the module, while keeping the Application\_Download in the module for future application update.

Can anyone give me some hints? Can I just make use of the Application\_Download or I have to write my own DOTA and multiapp routines?

Many thanks indeed.

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**Author:** ![Wallace](https://avatars.discourse-cdn.com/v4/letter/w/b4bc9f/32.png) [@Wallace](https://forum.sierrawireless.com/u/Wallace)\
**Post date:** [November 3, 2006, 5:01am UTC](https://forum.sierrawireless.com/t/download-error/819/2 "2006-11-03T05:01:20Z")

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Hi,

I think this first thing is to use the newest version of OpenAT and firmware. According to release there are alwyas some fixes related to DOTA.

If you are using Q2406B/OATV3.0x the newest version is firmware V6.52a and OAT ver 3.04