If your having issues with power is suggest you get an official power supply, Till then i wouldnt bother trying to diagnose as the sd card is probably corrupted
Both my power supplies are official/original. They both came with the Raspberry Piâs.
Oh yeah, I canât believe I forgot that in the list.
step 0. Back up⌠a lotâŚalwaysâŚ
I always made a complete backup of my config directory after every successful change I made to my config. Then if something goes wrong with a change that you canât figure out then just copy the entire contents of the config directory back in and you should be good.
And before every HA update (at the time every two weeks now every three) I would make a complete image of the SD card. so then even if the OS goes belly up then itâs as easy as re-imaging your SD card with your known good image. Then you can copy your saved config directory back in and you should be up and running in around 20 minutes.