Wont boot back up after updating to latest firmware

so my ender 3 v3 KE is stuck on machine startup in progress after updating the firmware what should i do?

Yeah, im also updated to and stuck at boot. By the way, this version is not available throught site downloading.
You need to reflash NebulaPad with USBCloner tool

I had an issue with a firmware update and it’s not the same as yours but for me completing the update and then removing any USB with the update on it solved my issue. Worth a shot.