It won't help you right now, but try to use a plastic tyre lever (or similar) to reset the pistons - a screwdriver can damage them.
They all advise you to do this, it never fucking works, obviously no help when everything is pushed together but i like using Allen keys and being careful.
@snottyotter started
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It won't help you right now, but try to use a plastic tyre lever (or similar) to reset the pistons - a screwdriver can damage them.