I want to remove the lock and I removed hex data from bios dump (all from addres starting F1000) and when I start the laptop it says something like preparing and then returns Dell Security Manager.

Did someone have similar issue and what could be the problem? Do I miss something?

tnx...

I have A1932 that is going to internet recovery every time.
i tried nvram and smc reset but it looks that MacBook is not reacting to that.
i tried to restore it through DFU but it restarts in the middle of process and Apple Configurator does not show any error, just stays like in progress.
keyboard is working because I can connect to WiFi but internet recovery always fails with 2100 or 2003 error.
also won’t open option to boot from usb device.

and I noticed that is not possible to turn off the MacBook. It’s always turning on by itself.

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