Boot your Recovery partition or boot a createinstallmedia USB installer, open Terminal and then disable SIP with the command:
Note: Yosemite SIP is not compatible with ROMTool/flashrom. Don’t use Yosemite at all - ROMTool/flashrom work from Mavericks to Mojave, except Yosemite. SnowLeopard/Lion/Mountain Lion/Yosemite won’t work.
[*]Do a BootROM dump using
ROMTool, zip password is "rom". You need SIP disabled and no AV or any anti-malware running. ROMTool is usually a false-positive to any AV/anti-malware because it uses flashrom and DirectHWAccess.kext. If you have any AV/Malware detection tool installed, do a clean install on another disk, it will be easier and less time consuming than disabling/removing kexts/etc.