sony vaio VGN-Z56MG insydeH20 bios unlock R5031M3

[DevilEpic2]

Hello everyone, I have a Sony Vaio VGN-Z56MG laptop with an InsydeH20 BIOS and R5031M3 drive number. The problem is I can't access hidden features. Advanced settings and Power Formsett are completely invisible. I've tried fixing it but it didn't work. I flashed directly into the SPI and changed a few things. I think the Advanced settings are controlled by 0x25A. Initially, I deleted its IF function, but it didn't work. The Vaio logo appeared, but when I entered the BIOS, it stayed on a black screen. Then, instead of deleting the IF function, I just changed 0x25A from 0x0 to 0x1, and when I flashed the SPI again, the Vaio logo appeared, but the BIOS remained on a black screen. My current thought is either Sony isn't allowing me to access the BIOS because it's been tampered with, or there's a problem with something I've done. I'd like you to take a look. If anyone is knowledgeable or experienced in this area, could they give me some tips or help me edit the file? Thank you in advance.