How to downgrade to 1.7.1?

I’m having problems with 1.8.0. My CC2530 seems to loose connection, after a restart of zigbee2mqtt my IKEA outlets don’t work anymore. If I re-pair one, all 5 work again. Had it already twice since the upgrade to 1.8.0, never had it before.

So I want to downgrade to 1.7.1 again, but I don’t see how.

I have the same problems with 1.8.0 also after flashing usb stick and repairing all devices, so luckily I still had a old backup with 1.7.1-dev but still I had to flash my usb stick before I was able to add/pair my devices again.
Is 1.8.0 really working?

Well, now it is working for 2 days 6 hours 10 minutes. Tapping wood. On my standby zigbee2mqtt instance I found a backup of 1.7.1. Rebuild it, but did not have to switch over yet.