Hi @Fernando thanks for your reply.
This device is a Chinese mini laptop called “P8”, the manufacturer is Crelander, but I did a deep search and this is a white label and who manufacturer in real is Shenzen Technologies, the version of the board is S8_AN_G04R120.
Yesterday I followed this:
Tutorial and I managed to do all the steps, but when I reboot the system, I can’t enter in the bios and the startup logo (it has a personalized boot logo from Crelander) is lost too, so I restore the back the backup I did before and everything is fine again and stoped all the mods to learn and do more searches about this. I saw in the web uefi editor all the suppressed things and all options that are hiddden and open is my bios is showing correctly, I don’t know too if the problem is the that I used old tools because I saw that my bios is a core version 5.27 (from 2025 version) too new.
Here is the link from aliexpress: