Hello there, firstly, I would like to thank you for your hard work into coming up with this, and yes it works great on my S21 Ultra Exynos G99B/DS.
I would love to suggest a feature/addon: Remove the press power button to continue text. (If it is possible)
Also just to point out, this post would get so much more attention if it was under "How To Guides" instead of "Development".
Anyways thanks you so much for your hard work
I intentionally left the "press the power button..." text on the screen, because once the bootloader is unlocked, and the phone takes you thru these screens, it will wait those ~8 seconds on that screen, unless you press the pwr button. So leaving there, lets the end user know they can skip it and get the system booted up faster.
However, I'll upload another version without the label