12/03/2026
Dock Flex Tester - Lightning
This is used to quickly check the functionality of the charging port, the U2 IC (or the charging chip), and the battery without disassembling the phone.
By plugging this into the charging port, it allows technicians to measure pin voltage and continuity using a multimeter; thus, identifying faults like broken traces or charging issues.
This diagnostic tool typically involves plugging this tester into the phone's charging port to check the pins (using a multimeter in diode mode). This usually measures the VBUS (5V), the USB data lines (DP/DM), and the identification pins to determine if the charger, the port, or internal components are failing.
This tool usually comes in microUSB, Type-C, and Lightning port variants.