Hello,
There:
https://www.dropbox.com/sh/lopeugob2scu ... Y7KSa?dl=0
Is a Folder called Lime File, in this Folder is a Video. In this video is shown what you have to do to get the controller flashed.
IMPORTANT: You have to let the controller on the scooter, do not remove the Battery from the controller or it will not work.
If the controller does not start anymore and seems dead, connect a charger to the charging port of the scooter and the controller will start again. For flashing controller: Remove the potting mass, you do not have to remove the complete potting mass, see in the video and in the pictures in the folder where the flashing connector is, and remove the potting mass only there, its not so much work as removing the complete potting mass. then connect the stlink cables, in the folder is a picture. It shows where you have to connect the cables on the stlink and another picture shows where you have to connect the cables to the controller board of the scooter. Then follow the video the unlocked file is in the folder in the link. The best is to download the entire file, so you have the informations about the lime scooter.