# Disaster! Devices and Groups gone after 8.1.1 **URL:** \ **Category:** Questions & Help\ **Tags:** homey-pro\ **Created:** [December 21, 2022, 8:47am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921 "2022-12-21T08:47:11Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![pmeester](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pmeester/32/17275_2.png) [@pmeester](https://community.homey.app/u/pmeester)\ **Post date:** [December 21, 2022, 8:47am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/1 "2022-12-21T08:47:11Z")
Update: After a restore, most devices are still gone! Disaster! How to undo the 8.1.1 upgrade? Old text: Does anybody have the same problem? This morning I got the notification that Homey has been updates to 8.1.1. but then I found that all groups have disappeared and that the Group app is no longer working. Would a restore of yesterday’s backup fix this? Thanks ---
**Author:** ![Ludovic](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ludovic/32/34145_2.png) [@Ludovic](https://community.homey.app/u/Ludovic)\ **Post date:** [December 21, 2022, 10:05am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/2 "2022-12-21T10:05:29Z")
After the update, my eufy security cameras are unavailable, unable to retrieve them. ---
**Author:** ![Martijn\_C](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/martijn_c/32/39993_2.png) [@Martijn\_C](https://community.homey.app/u/Martijn_C)\ **Post date:** [December 21, 2022, 10:18am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/3 "2022-12-21T10:18:26Z")
This is because of an update from Eufy. See post on the forum from @martijnpoppen. Has nothing to do with the update from Homey. ---
**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 21, 2022, 10:20am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/4 "2022-12-21T10:20:16Z")
You can’t go back to a previous firmware, and it’s also not possible to revert to an older version of an app with backups (backups don’t contain either firmware _or_ apps, only data). What happens when you try to install the Group app from the app store again? Also, have you tried a [PtP](https://community.homey.app/t/how-to-ptp/17304)? ---
**Author:** ![Ludovic](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ludovic/32/34145_2.png) [@Ludovic](https://community.homey.app/u/Ludovic)\ **Post date:** [December 21, 2022, 10:28am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/5 "2022-12-21T10:28:02Z")
Thank you, coincidence with the update 8.1.1 then, the cameras have been unreachable since this morning. ---
**Author:** ![martijnpoppen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/martijnpoppen/32/84849_2.png) [@martijnpoppen](https://community.homey.app/u/martijnpoppen)\ **Post date:** [December 21, 2022, 10:55am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/6 "2022-12-21T10:55:36Z")
@Ludovic see [https://tinyurl.com/eufy-homey](https://tinyurl.com/eufy-homey) for the latest status for this issue 🙂 Coincidence not really. due to the Homey update the Eufy app restarted and that part was broken due to recent API changes on the Eufy side ---
**Author:** ![Ludovic](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ludovic/32/34145_2.png) [@Ludovic](https://community.homey.app/u/Ludovic)\ **Post date:** [December 21, 2022, 11:05am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/7 "2022-12-21T11:05:38Z")
Thank you for the clarification 🙂 ---
**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:** [December 22, 2022, 12:44am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/8 "2022-12-22T00:44:28Z")
@pmeester I also sometimes find the Group app paused after a restart, but it can take up to 45 minutes for Homey to start all apps (I’ve over 45 apps, so it starts 1 app a minute probably). So, a bit of patience is also an ingredient here. I would say, just goto …more \> apps \> Group \> hit the sprocket and, if disabled, enable the app and/or restart the app. ---
**Author:** ![Michel\_Bos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michel_bos/32/5481_2.png) [@Michel\_Bos](https://community.homey.app/u/Michel_Bos)\ **Post date:** [December 22, 2022, 9:23am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/9 "2022-12-22T09:23:05Z")
After the update to 8.1.1 all my Hue Zigbee bulbs were not reachable. I had them all connected via the app “Hue without the bridge”. So I migrated all Hue lights back to the regular Hue app thru the bridge. Furthermore, my IKEA Bulb is gone. Cannot add (after delete) it neither. Luckily, I can switch it off via a smart power plug, but it kinda sucks off course. What is happening? Is it Zigbee? ---
**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 22, 2022, 9:23am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/10 "2022-12-22T09:23:49Z")
Did you do a PTP? Also, how many Zigbee devices do you have in your Homey’s Zigbee network? ---
**Author:** ![Michel\_Bos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michel_bos/32/5481_2.png) [@Michel\_Bos](https://community.homey.app/u/Michel_Bos)\ **Post date:** [December 22, 2022, 9:46am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/11 "2022-12-22T09:46:30Z")
Hi @robertklep, thx for responding! With 1 Hue device still to be transfered, there remain 10 Zigbee devices (transfered about 15 -20 Hue devices (incl strips). Also my Aqara motion sensors fail since a few days. Help me, PTP? You mean pressing Interview in the developer environment? I see ?-s in the route of the remaining Hue bulb there, also after interviewing it. Another question: Can I reset my Zigbee network, or will I loose all devices then (as with resetting ZWave)? ---
**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 22, 2022, 10:01am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/12 "2022-12-22T10:01:12Z")
> [@Michel\_Bos](#): > > Help me, PTP? You mean pressing Interview in the developer environment? I see ?-s in the route of the remaining Hue bulb there, also after interviewing it. PTP means [Pull The Plug](https://community.homey.app/t/how-to-ptp/17304). > [@](#): > > Another question: Can I reset my Zigbee network, or will I loose all devices then (as with resetting ZWave)? You will lose all your devices ☹ ---
**Author:** ![Michel\_Bos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michel_bos/32/5481_2.png) [@Michel\_Bos](https://community.homey.app/u/Michel_Bos)\ **Post date:** [December 22, 2022, 10:14am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/13 "2022-12-22T10:14:55Z")
PTP: Ah, OK. Done it with the IKEA bulb. No effect. Didn’t do it with HUE. Can try it with the 1 still remaining 🙂 Loosing devices … No Go… (At least not all at once). Deleted and added Aqara sensors, they worked for a minute but then didn’t respond anymore. Thx! Michel ---
**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 22, 2022, 10:56am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/14 "2022-12-22T10:56:31Z")
> [@Michel\_Bos](#): > > PTP: Ah, OK. Done it with the IKEA bulb. No effect. Didn’t do it with HUE. Can try it with the 1 still remaining The idea is that you do it with Homey 😅 Also, if you’re still using the original Athom power supply for your Homey, try replacing it. ---
**Author:** ![Michel\_Bos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michel_bos/32/5481_2.png) [@Michel\_Bos](https://community.homey.app/u/Michel_Bos)\ **Post date:** [December 22, 2022, 11:24am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/15 "2022-12-22T11:24:00Z")
> [@robertklep](#): > > The idea is that you do it with Homey 😅 😂 LOL. OK, just unplugged Homey… Hue should not be a problem anymore, for all is now ‘moved to work via the bridge again’. ‘Unplugging’ didn’t help there with the remaining bulb 🙂 PTP worked! At least for the IKEA bulb! Will check rest of Zigbee devices now. Looks like they are working again also… 🫰 Thx @robertklep ! ---
**Author:** ![Michel\_Bos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/michel_bos/32/5481_2.png) [@Michel\_Bos](https://community.homey.app/u/Michel_Bos)\ **Post date:** [December 22, 2022, 11:30am UTC](https://community.homey.app/t/disaster-devices-and-groups-gone-after-8-1-1/73921/16 "2022-12-22T11:30:13Z")
> [@robertklep](#): > > Also, if you’re still using the original Athom power supply for your Homey, try replacing it Already did that in the past 👍