Chosen Solution

this is a 2013 model and it doesn’t have screws at the back, I need to find the serial number.

Hi, According to this link it states that it has internal serial numbers. That doesn’t necessarily mean that they are visible on the inside, they may be stored in software. https://epsstore.ti.com/OA_HTML/csksxvm…. Here is a link that may be of some help. https://education.ti.com/educationportal