How to change the Service Tag on a Dell Optiplex 9020
I extracted a binary image via an SPI flasher from the SOIC Bios chip. While I was successful in neutering the intel Management engine, I was unable to change the service tag by going through the binary data with a hex editor and manually replace all mentions of the service tag. I replaced some, but it seems that there is another SOIC chip besides the main bios chip containing the Service tag.