# Zigbee devices are not working anymore

**URL:** <https://community.homey.app/t/zigbee-devices-are-not-working-anymore/133135>\
**Category:** Questions & Help\
**Tags:** zigbee\
**Created:** [March 20, 2025, 7:02pm UTC](https://community.homey.app/t/zigbee-devices-are-not-working-anymore/133135 "2025-03-20T19:02:39Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [March 20, 2025, 7:23pm UTC](https://community.homey.app/t/zigbee-devices-are-not-working-anymore/133135/2 "2025-03-20T19:23:00Z")

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Hi Joop,

Replace the power unit by a decent _5VDC / 2A minimum_ unit, and restart Homey into recovery.  
In the mobile app, select “Add new Homey” and select your model.  
Follow instructions and wait for the menu option “Full software download” and select it.  
This will install the firmware from scratch, and solved the weirdest zigbee issues.

Nothing of your data will be altered, but I’d recommend to have a recent backup at hand, just in case.

Extended howto:

> [@\[HowTo\]\[Pro\] Restarting Homey Pro to Recovery Mode - Adv. Options From Mobile](https://community.homey.app/t/howto-pro-restarting-homey-pro-to-recovery-mode-adv-options-from-mobile/61222):
>
> This option is only for Homey (Pro) models “Early 2016”, “Early 2018” and “Early 2019” so Only the White Ball’s Sometimes you need the extra options, things hidden for normal use, for example: Full Firmware download Complete Reset to sell your old Homey Or maybe you just want to change Homey’s WiFi. There are now a couple of extra options in the mobile Apps, so no need to use an FireFox or Chome Browser with flags enabled to press the Alt- key on your keyboard. Just use your App from no…

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