Samsung Galaxy A13 had no specific Test Point information online until the time I got the data cut off in September 2021. Test Points are usually points on the mobile phone motherboard that are used to perform operations such as unbrick, firmware installation or functional testing. Information about Test Points is often not widely shared and varies from phone model to phone model.
To learn about Test Point on Samsung Galaxy A13 or any other phone series, you should refer to the official technical documentation from Samsung or join mobile phone repair discussion forums to get advice. Support from the phone repair community. Remember that working with Test Point can damage your phone if not done properly, so you need to be cautious and only do it if you have the necessary knowledge and skills.