HolyBro x500 V2 Setup Troubles

Hello I’m new to this forum but I wanted to find out how to ask for help. I tried follwing this guide by Painless360 https://www.youtube.com/watch?v=WzM4J_qlEso but when I’ve come to the motor testing stage, I get no response from my motors, as well as getting “Battery Unhealthy” messages, and the telemetry radios seem to not work. More than likely I’m doing something wrong in my setup but I was wondering if anyone could offer some advice or support? Any response would be helpful!

I recommend to read and follow the How to methodically tune (almost) any multicopter guide. Download the methodic configurator, edit each file in the configurator to suit your copter and upload them to the FC one by one as you read along. The guide and configurator tell you what to do at any given time and all needed documentation is linked. Do not skip any steps! Anything that might seem like a shortcut will result in a worse tuned copter in the end.