Auf Verbindung warten... error:7 Der EEPROM-Lesevorgang ist fehlgeschlagen. Auf die Standardwerte zurücksetzen und wiederhergestellt (Waiting for connection... error:7 The EEPROM read operation failed. Reset to defaults and restored)

[JohnJohn (John Johnson)]

Did you make a change to the factory settings in the Console window?

Some GRBL controllers, like your Atomstack A5 Pro, do not allow you to keep settings that you choose and reset them to the factory presets when you turn it off and on again.

I believe that you will be able to proceed from this reset point.
Let me know if you are still stuck.

This is also worth review:

GRBL factory settings of AtomStack A5/30W Laser Engraver

Recently I bought the A5/30W laser engraver and ran some first tests. LightBurn recognized the machine and set the working space correctly. Everything went fine. It’s the newer model with the red eye protection case and a power switch. Then there was this time of the year the annoying daylight saving time ended and I decided to fire up Arduino IDE to set my little Arduino Uno powered digital clock. To my surprise the sketch didn’t work so I tried to debug it and uploaded it several times. Afte…