# webOSDev.LGUDID on WebOS 3.0

**URL:** <https://forum.webostv.developer.lge.com/t/webosdev-lgudid-on-webos-3-0/1775>\
**Category:** Web App Development\
**Created:** [January 20, 2023, 8:53pm UTC](https://forum.webostv.developer.lge.com/t/webosdev-lgudid-on-webos-3-0/1775 "2023-01-20T20:53:31Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mkvod01](https://avatars.discourse-cdn.com/v4/letter/m/73ab20/32.png) [@mkvod01](https://forum.webostv.developer.lge.com/u/mkvod01)\
**Post date:** [January 20, 2023, 8:53pm UTC](https://forum.webostv.developer.lge.com/t/webosdev-lgudid-on-webos-3-0/1775/1 "2023-01-20T20:53:31Z")

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Hi,  
Does work webOSDev.LGUDID for WebOS 3.0.x?  
I tested on WebOS Emulator 3.0, but return error.  
Does it work real WebOS 3.0.x TV?

Thanks  
Best Regards

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**Author:** ![narae0.kim](https://avatars.discourse-cdn.com/v4/letter/n/87869e/32.png) [@narae0.kim](https://forum.webostv.developer.lge.com/u/narae0.kim)\
**Post date:** [January 27, 2023, 12:32am UTC](https://forum.webostv.developer.lge.com/t/webosdev-lgudid-on-webos-3-0/1775/2 "2023-01-27T00:32:31Z")

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The webOSTV.js is fully supported on webOS TV 4.0 and higher. And Device Unique ID API is not supported in the webOS TV Emulator. Thank you.

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**Author:** ![mkvod01](https://avatars.discourse-cdn.com/v4/letter/m/73ab20/32.png) [@mkvod01](https://forum.webostv.developer.lge.com/u/mkvod01)\
**Post date:** [January 27, 2023, 6:01am UTC](https://forum.webostv.developer.lge.com/t/webosdev-lgudid-on-webos-3-0/1775/3 "2023-01-27T06:01:26Z")

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Hi again narae0.kim,

Thanks but this is not my answer.  
I know the webOSTV.js is fully supported on webOSTV4.0 and higher.  
My question is about webOS 3.0.x tvs. I dont have webOS 3.0.x tvs, I cant test it on real tv with webOS 3.0.x.  
Following page says that  
“Returns a device ID provided by the webOS TV ( LGUDID ) since webOS TV 3.0.”

> **[webOSDev API](https://webostv.developer.lge.com/develop/references/webostvjs-webosdev)**
>
> Check out the webOSDev API that provides methods for device information, digital right management (DRM), and app launch.

is it possible or not?  
Thanks

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**Author:** ![narae0.kim](https://avatars.discourse-cdn.com/v4/letter/n/87869e/32.png) [@narae0.kim](https://forum.webostv.developer.lge.com/u/narae0.kim)\
**Post date:** [January 27, 2023, 6:32am UTC](https://forum.webostv.developer.lge.com/t/webosdev-lgudid-on-webos-3-0/1775/4 "2023-01-27T06:32:54Z")

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Sorry for the confusion. Device Unique ID API is supported in the webOS TV 3.0 and higher, but not in the webOS TV Emulator 3.0. Please try with the webOS TV Emulator 4.0. Thank you.

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**Author:** ![mkvod01](https://avatars.discourse-cdn.com/v4/letter/m/73ab20/32.png) [@mkvod01](https://forum.webostv.developer.lge.com/u/mkvod01)\
**Post date:** [January 27, 2023, 6:46am UTC](https://forum.webostv.developer.lge.com/t/webosdev-lgudid-on-webos-3-0/1775/5 "2023-01-27T06:46:50Z")

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Thank you narae0.kim