And if that does not work for some reason, here's a slightly more desperate approach ...

Use the long nose pliers to pull the rubber piece surrounding that hook thing out all the way. Remove it to get yourself some clearance.

That black cable sheath clearly shown in the 4th photo is the thing that carries the cable that actually pulls the door latch open. With the rubber piece removed, you may be able to sneak a slotted screwdriver through the hole to hit that cable sheath and press as hard as you can to try to pop the latch.

Or if that does not work, maybe a coat hanger going straight down through the hole made by removing the rubber piece would allow you to grab onto the thing the cable pulls and pull it directly. More finesse required than the previous approaches.

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2001 X5 3.0i, 203k miles, AT, owned since 2014