I would get someone to hold the hold the leaver open and then try and lift the bonnet. If the bonnet opens then it will prob just be the spring that has brokenok I pull the leaver and nothing happens bar a click at the actual catch, so the cable is still pulling something
How do I get the fucker open?
grinder?that aint workin, it was a little stiff before now
get someone to lift up on the bonnet as you pull the handle
probably the spring has gone