I installed Monterey 12.7 on HP 4540s (i7-3610QM, 8GB RAM) and patched it with post-installer, but I still don't have a battery indicator and sound. My EFI is below:
EFI.zip
Delete EFI from Install SSD , Reboot to the USB on the ssd then retry the program
see the video about the installer Log
send the Log if you have issue again.
I installed Monterey 12.7 on HP 4540s (i7-3610QM, 8GB RAM) and patched it with post-installer, but I still don't have a battery indicator and sound. My EFI is below: EFI.zip