MAC OS CATALINA SSD NOT RETURNED BY UEFI BIOS

[dgs57]

Hi, I have dualboot Mac OS 10.15.1 (SSD Sandisk) and Win10 (SSD Samsung Evo) and everything works properly.
Except that, due to some of my clumsy operations in the process of updating mac os 10.15, my boot option bios no longer sees Uefi Mac Os. On the contrary, he sees the Sandisk SSD (on which mac os is installed) as the Windows boot manager and therefore clover does not start.
If instead I boot with the USB drive, it sees the two systems and the 2 ssd correctly and I can easily choose to start Mac from Studio or Win10 from microsoft efi.
I attach screenshots and photos of my system.
use clover ver 5093
How can I fix the mistake I made?

 

[pastrychef]

Hi, I have dualboot Mac OS 10.15.1 (SSD Sandisk) and Win10 (SSD Samsung Evo) and everything works properly.
Except that, due to some of my clumsy operations in the process of updating mac os 10.15, my boot option bios no longer sees Uefi Mac Os. On the contrary, he sees the Sandisk SSD (on which mac os is installed) as the Windows boot manager and therefore clover does not start.
If instead I boot with the USB drive, it sees the two systems and the 2 ssd correctly and I can easily choose to start Mac from Studio or Win10 from microsoft efi.
I attach screenshots and photos of my system.
use clover ver 5093
How can I fix the mistake I made?

If the EFI folder of your USB flash drive is working, just replace the EFI folder on your Sandisk with it.

 

[dgs57]

If the EFI folder of your USB flash drive is working, just replace the EFI folder on your Sandisk with it.

sorry, but how do I do it? I tried but the "" insufficient space to copy EFI_usb "" warning appears.

 

[pastrychef]

sorry, but how do I do it? I tried but the "" insufficient space to copy EFI_usb "" warning appears.

Mount the EFI partition of your USB flash drive.
Mount the EFI partition of your SSD.
Copy the entire EFI folder from the EFI partition of the USB flash drive to the EFI partition of the SSD.