How to select OpenCore EFI from iMac Bootpicker whwn screen remains blank prior to selecting EFI?

I have a very odd issue if anyone is interested in helping me out;

On my iMac 2011 I did a GPU upgrade and lost access to the Mac's Bootpicker (alt on boot) due to a blank screen that stays off till OpenCore EFI is loaded, I installed OpenCore to the SSD however I am having trouble selecting the EFI as I cant see the selections since the screen is off. I know its working bc the EFI loads perfectly when my USB is plugged in but I cant seem to pick the EFI on the Internal SSD

submitted by /u/SoshiPai
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