Can't open trunk

The key does turn in trunk lock and I do feel some resistance like it was trying to catch but seems it doesn’t trip the latch mechanism. I tried pushing down on trunk lid AND pulling up on it liitle when turning the key but to no avail. The release lever on floor of drivers side is flipped up and won’t stay down in it’s natural position, when I pull the lever I feel no resistance on the cable
that’s why I think the cable has broken or dis-engaged from the trunk latch somehow.

I know I can trash the trunk lock with a screwdriver or drill it out… still feel that’s the last resort though