Mobile SIM card holder usually refers to the card slot or card holder that holds the SIM card. The SIM card tray is located on the side or top of the phone and is used to insert the SIM card to connect to the mobile network. Typically, users can activate cell phone services, receive calls, send text messages and use mobile data by inserting the SIM card into the phone SIM card. SIM cards are generally designed to be easy to plug in and out, allowing users to easily replace or install new SIM cards.

The mobile phone SIM card defect detection equipment can effectively identify and analyze various types of defects easily produced in the production process such as scratches, knife marks, different colors, deformation, material lines, white spots, scratches, film removal, mixing, sand removal, corrosion, radium carving multi-carving, radium carving black, scratch, non-radium carving, T-surface knife marks, inner ring knife marks, etc., easily identify defect characteristics.

Mobile phone SIM card defect detection equipment is usually used to test the quality and functionality of the SIM card. Through optical and camera technology, the appearance defects of the SIM card, such as cracks and deformation, are detected. Measure the dimensions of the SIM card to ensure compliance with standard specifications such as ISO 7816. Check the contact between the SIM card and the device connector to ensure a good connection. Simulate long term use to test the durability and stability of the SIM card. Test the electrical characteristics of the SIM card, such as transmission rate, voltage, etc., to ensure normal function. Some devices have automated features that improve inspection efficiency and reduce human error.

Detection effect

Dark spot

Cap notch

Card cap teeth edge

缺膠

Poor size