OBDstar Replacement Android PCB For Key Master 5 / X300PRO

Compatibility: Make sure the PCB is meant for your specific Key Master model (Key Master 5 / X300PRO). The PCB typically isn’t universal across all OBDSTAR devices.

Installation: Replacing the PCB involves opening the tool and potentially soldering or connector alignment—ensure you are comfortable with electronics or have a technician do it.

Functionality: The PCB is not a standalone programmer — it’s just a replacement component. To use it, you need the rest of the Key Master device (display module, battery, housing, cables, etc.).

Price Range: Replacement PCBs are generally much cheaper than a full unit, but verify signals, firmware, and version compatibility.