Bracken

I have a P150SM with a GTX970M using a custom inf. Is it possible to modify the system bios so that we no longer require inf mods ? .. I have no idea how to even begin modifying a bios. Thinking of upgrading a newer laptop but can't until I sell my P150SM.. I had it listed on eBay a few times but no takers because of the custom INF.. Unfortunately the GTX970 replaced my 780 as it died so can't reinstall that for selling. Any info would be great.. I know its my first post and a big ask but there is no other way for me to go about it. Happy to donate after its sold, or before but would be less as it took me months to save up ready to replace this. Cheers David