# \[APP\]\[Pro\] Remotec Technology App (v2.4.3)

**URL:** <https://community.homey.app/t/app-pro-remotec-technology-app-v2-4-3/155>\
**Category:** Apps\
**Tags:** app, z-wave\
**Created:** [August 22, 2018, 7:57pm UTC](https://community.homey.app/t/app-pro-remotec-technology-app-v2-4-3/155 "2018-08-22T19:57:00Z")\
**Posts on this page:** 1\
**Showing post:** 86

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**Author:** ![HFF](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/hff/32/74974_2.png) [@HFF](https://community.homey.app/u/HFF)\
**Post date:** [April 17, 2023, 7:57am UTC](https://community.homey.app/t/app-pro-remotec-technology-app-v2-4-3/155/86 "2023-04-17T07:57:00Z")

</div>

I had the exact same problem for trying to add a new zrc-90 from robbshop. But I found a fix:

1. Homey APP → Settings → Z-wave → Delete a Z-wave device. Press button “L” on zrc-90 to complete.
2. Reset the zrc-90 to factory defaults: Press and keep holding “R” button not less than 10 seconds. Followed by Release “R” button then triple click on “R” button within 2 seconds.
3. Now add the zrc-90 as you normally would! Add APP → Remotec Technologies → Remotec Scene Master → Install → Press “L” once → Press “L” once. Done.

This time it will not give you the “Unknown error occured”. And you can use the device in your flows.  
Hope this may help someone else.

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