In some cases, the scooters may fail to fold. The scooter’s handlebars could be blocking the process scooter from folding. If that is the case, you will need to readjust and repeat the procedure. Confirm also if the alignment wheels at the bottom of the handlebars are in line with the folding mechanism.
If you fix the two problems above, the scooter should then be able to fold easily. However, if you fail to do it, you will need to troubleshoot the system. You can also get someone who understands the process to help you. Always refer to the user manual if you are not sure about anything.