Zorin OS 16 black screen with blinking cursor

This is happening to me with zorin 16. Worked for a while but now is going to black screen with flashing cursor

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Can you detail what computer you are using, graphics card and if you made any changes, installations or removal directly prior to the trouble starting?

Hello, I'm not sure how to tell what cpu I am using without access to system details, using Nvidia GTX 660. No changes at all made, computer was working fine last night.

In terminal:

sudo apt install inxi

Then paste the output of the following command here:

inxi -F

I cannot get to terminal, probably because i am a Linux noob.

Alt shift f-keys does nothing
Tapping escape does nothing
Tapping left shift takes me to grub with flashing underscore but I cannot type

Intel i5-4690k

You mean at boot?

Yes as soon as I hit power on I tap left shift like my life depends on it and it takes me to a black screen that says grub then flashing underscore but no keyboard inputs work on that screen

Trying the installation usb in UEFI mode gives the same issue

Can you try hitting ctrl or alt or F1 at that screen to access tty?
IF that works, enter in:

sudo apt remove --purge nvidia*

Then reboot...

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Yes none of those work, grub screen remains

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This... I did not expect.
What happens if you try it with safe graphics?

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Works okay (some freezing) if I select the usb in non UEFI mode, standard graphics. With safe graphics seems to work fine as well

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Is secure boot in your EFI settings enabled or disabled?

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Disabled

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I also tried using the keyboard in all of my possible usb slots with all other USB devices removed and that didn't work for the grub screen

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I will admit... I am a bit confused by that. Usually the black screen and blinking cursor is blank- Are you willing to use your phone to take a picture of that grub screen?

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I can't upload the picture due to file size limit, but it is literally a black screen with"GRUB _" and that is it. The underscore is flashing

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What happens if you tap the e key?

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No response

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