Hello My friend owns a Metropolis 400i He was so divorced that he put the keys key in the rear shelf and locked the seat. But he did not move the scooter 2 years due to battery empty- 2 of the spare keys not findable or also with others in the plant. How do I get to open the bench now because there is no power in the on-board grid and I do not come to the battery thus also the opener shelf at the back does not work. Please for info and thanks in advance Greeting A ndi