Unable to set configuration.

I am trying to download bigsur from (Olar1la) and I followed every single step. My laptop is an asus x441u with intel core i3-7100 and 4gb ram with an 250 SSD storage. I am still stuck with this input and it doesn’t seem to move anymore. I have already modified the BIOS Setting but still, it doesn’t work. Anyone know how to fix this?

submitted by /u/Hopeful-Calendar-557
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