MacOS Install will not show in OpenCore Boot Menu (First Installation)

So I´ve followed Opencore´s guide for my laptop and processor, a EliteBook 8470p. I went carefully through all the steps, I´ve done the config.plist so many times, and so far I have only been able to get to completely download the OS, but once it´s finished, reboots and then it is supposed to show the MacOS install under the Opencore Boot Menu, but it doesn´t; the only thing I can see there is the USB and Reset NMRAM. If I click in the USB option it will just go through again and I will get to the options to download again the OS.

I´ve searched everywhere but haven´t found a solution, although I see people asking for this problem too. I´m doing the install on an external HDD, and tried in all ports, 3.0 and 2.0. I configured the BIOS as the guide specifies, so I´m not sure what to do anymore, because literally I tried everything that comes into mind and that I´ve seen on the web.

HELP PLEASE!!

submitted by /u/falnex1
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