ENE KKBC is the keyboard controller, this is what allows you to flash through to the SPI. The SPI Rom 128KB image is of a SOIC BIOS chip as I mentioned.
There’s no no chip at UE4, did you dump all three SOIC8 chips and see what’s what? Looks like third one there under ENE chip, under 940 label, right at O or Q27
Yes, maybe you need to ground both of those for the lock to enable?