The guide is for Mojave however the steps should be similar for Catalina. Since you're a newbie I'd suggest reading the entire guide carefully so you don't miss anything important :)
I don't own the laptop so...
Have you tried OC yet? I'm using OC on my Inspiron 5570 and it works. Try my EFI or @Mrgeque 's EFI here , although you may have to adjust some settings because of different model numbers etc.
Are the specs your profile current as well? if not what are your specs? lmk
UPDATE: I upgraded to Big Sur 11.3.1 with Mateo's BigSur EFI (had to make changes to the config.plist+add kexts) and here's a summary of what works/doesn't work/not tested so far. I'll update if anything breaks and/or get fixed. I'm also open to suggestions if any.
SLEEP (via menu...
Did that, HDMI works now!
I do wanna ask though, since your OC version is 0.6.0, will upgrading break anything or is it safe to do so?
I'm also getting some OCS: No schema for ___ readouts on startup but they don't affect performance and/or startup. Will OC snapshotting get rid of these or will...
Just did that (removed the flag and reset NVRAM via bootloader) and it still doesn't do anything apart from lagging on startup when HDMI is plugged in
edit: used it for a DJ gig yesterday and it's safe to say it worked flawlessly
sorry for the long wait, i've been very busy this week
display issue is still the same, laptop gets very laggy when HDMI is connected. TV sees it but there's no signal as well. here's my EFI per request
ok noted. from your screenshots it looks like you have a qualcomm card. unfortunately qualcomm/atheros wifi cards aren't supported as there is no kext for it. you may have to swap it out for a working card (you can try intel but you'll need itlwm) or buy a broadcom card/DW1830 and swap it out...
Please upload your entire EFI folder. Also what WiFi card are you using in you system? Because I can see from your config.plist there is a broadcom kext for wifi and an intelbluetoothinjector kext for Intel...