# Wp7605 Update error

**URL:** <https://forum.legato.io/t/wp7605-update-error/6956>\
**Category:** Legato Application Framework\
**Created:** [October 3, 2025, 12:46am UTC](https://forum.legato.io/t/wp7605-update-error/6956 "2025-10-03T00:46:37Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![tanaporn\_y](https://avatars.discourse-cdn.com/v4/letter/t/c0e974/32.png) [@tanaporn\_y](https://forum.legato.io/u/tanaporn_y)\
**Post date:** [October 3, 2025, 12:46am UTC](https://forum.legato.io/t/wp7605-update-error/6956/1 "2025-10-03T00:46:37Z")

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WP7605 firmware R13 generic

1. Send the update file (xx.wp76xx.update) from tablet to wp7605 by using OTA
2. send command to update the app

but it was error.

Do you have any sample code for update??

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<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\
**Post date:** [October 3, 2025, 1:07am UTC](https://forum.legato.io/t/wp7605-update-error/6956/2 "2025-10-03T01:07:29Z")

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you can directly use “update xxx.update” command to update application

For the source code of update command, you can see here:

> <https://github.com/legatoproject/legato-af/blob/master/framework/daemons/linux/updateDaemon/updateDaemon.c>

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<div class="post-metadata">

**Author:** ![tanaporn\_y](https://avatars.discourse-cdn.com/v4/letter/t/c0e974/32.png) [@tanaporn\_y](https://forum.legato.io/u/tanaporn_y)\
**Post date:** [October 10, 2025, 1:23am UTC](https://forum.legato.io/t/wp7605-update-error/6956/3 "2025-10-10T01:23:50Z")

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Thank you for you answer.

I have wrote the code with “ system(“update /home/root/Test.wp76xx.update“) ”

how can I know that it success or not??

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<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\
**Post date:** [October 10, 2025, 1:33am UTC](https://forum.legato.io/t/wp7605-update-error/6956/4 "2025-10-10T01:33:42Z")

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you can remove the application by “app remove app1”

After running the code, you can check if the application has been installed by “app status”

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<div class="post-metadata">

**Author:** ![tanaporn\_y](https://avatars.discourse-cdn.com/v4/letter/t/c0e974/32.png) [@tanaporn\_y](https://forum.legato.io/u/tanaporn_y)\
**Post date:** [October 10, 2025, 1:36am UTC](https://forum.legato.io/t/wp7605-update-error/6956/5 "2025-10-10T01:36:41Z")

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I have looked in logread and found the it have this error.

what does it mean??

 ![update_err](https://us1.discourse-cdn.com/flex019/uploads/legato1/original/2X/5/5757fad3e08c9656f5a9d141ea9e1f11271bc1a5.png)

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<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\
**Post date:** [October 10, 2025, 1:43am UTC](https://forum.legato.io/t/wp7605-update-error/6956/6 "2025-10-10T01:43:25Z")

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you might need to use full path

`system(“/mnt/legato/system/bin/update /home/root/Test.wp76xx.update”)`

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<div class="post-metadata">

**Author:** ![tanaporn\_y](https://avatars.discourse-cdn.com/v4/letter/t/c0e974/32.png) [@tanaporn\_y](https://forum.legato.io/u/tanaporn_y)\
**Post date:** [October 10, 2025, 4:00am UTC](https://forum.legato.io/t/wp7605-update-error/6956/7 "2025-10-10T04:00:50Z")

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how can I set app to auto start after update??

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<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\
**Post date:** [October 10, 2025, 4:02am UTC](https://forum.legato.io/t/wp7605-update-error/6956/8 "2025-10-10T04:02:46Z")

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when you compile the application, you need to set “start: auto” in adef file:

> **[Application Definition .adef - Legato Docs](https://docs.legato.io/latest/defFilesAdef.html#defFilesAdef_start)**
>
> legato™ is an open source Linux-based embedded platform designed to simplify connected IoT application development