# Tradfri v1.8.4 not working on Homey firmware 5.0.0.-rc.46

**URL:** <https://community.homey.app/t/tradfri-v1-8-4-not-working-on-homey-firmware-5-0-0-rc-46/38319>\
**Category:** Apps\
**Tags:** zigbee, homey-pro-firmware\
**Created:** [November 30, 2020, 9:40pm UTC](https://community.homey.app/t/tradfri-v1-8-4-not-working-on-homey-firmware-5-0-0-rc-46/38319 "2020-11-30T21:40:36Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [December 26, 2020, 12:17pm UTC](https://community.homey.app/t/tradfri-v1-8-4-not-working-on-homey-firmware-5-0-0-rc-46/38319/14 "2020-12-26T12:17:25Z")

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> [@Amund\_Westbye](#):
>
> Hi, can you please tell me more about the ALT button?

> [@Zigbee issue (5.0.0-rc47)](https://community.homey.app/t/zigbee-issue-5-0-0-rc47/38556/6):
>
> After contact with Athom and several different solutions I can tell that the following worked for me: Put your Homey in recovering mode Go to [setup.athom.com](http://setup.athom.com) to reinstall Reinstall through your browser, not by the Android or IOS app While the Homey is searching for updates, press the ALT button. Select ‘Download full update’ Keep your user data Perform a FULL Zigbee reset otherwise the problem will come back after several hours. EDIT: Athom would like to know how big the issue is, so please a…

However, be aware that Homey backups are not proper/full backups when it comes to apps and firmware: they only contain which apps and which firmware channel (stable or experimental) were installed at the time of backing up. When restoring, it will always download and install the latest versions of the apps and the firmware for that channel.

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