If you want to perform repairs on your own Skyteam ST50 then it is always recommended to own a Workshop Manual for a guide in the event you want to know tips to take out a specific component such as the Door and match it again efficiently.
Skyteam ST50 Workshop Manuals offers clear certain diagnostic guides for the vehicle therefore if something is faulty it can help you determine what the situation is and how you can make it better. You can then assess if this can be achieved by yourself or that the job is simply too big you can book your ST50 into a nearby garage.
Skyteam ST50 manual