Thank you. I was the original poster for that thread. I found a way to "unlock" the SLIC table, but it seems the newer bios is still SLIC 2.4. So I guess there's no way to add SLIC 2.5 to DELL BIOS.
look here https://forums.mydigitallife.net/th...-manual-mod-thread.7178/page-228#post-1375613 and here https://forums.mydigitallife.net/th...-manual-mod-thread.7178/page-243#post-1506078 It's a secure capsule bios and when rebooted, the built-in flash utility checks the digital signature and does not flash the modified BIOS.
I know. I'd read about that before. I would like to try with external flash programmer. So, it would be great if you can mod it with SLIC 2.5.