I'm attempting to add whitelist support on this laptop, and I'm aware of the middleton's bios. I'd like to make a full backup of the BIOS before hand and I've tried a couple methods without success. Also being non-EFI and very old excludes modern documention and the embedded security processor present. I hooked up a SOIC clip with SPI and detected the chip with Flashrom but the binary file it grabs is all 0's. I also tried to make a backup in windows using WinPhlash64 but it requires a flash image to even backup so I pulled a .FL1 file from Lenovo's last OEM BIOS update but complains of error -103 size missmatch. Lastly I went into RW everything and was able to see some data constantly in activity in the binary viewer so that's probably the embedded security chip. Using RW everything I was able to pull the ACPI table into a binary file. Is there some easy method I'm not aware of to do a full BIOS backup?