Solution: Launch-X431 VCI Connection Failure Problem
Launch X431 VCI connection failure may happen to your device when Bluetooth connection was failed. At this time, firmware update failed! In case your device like Launch X431 V+ , X431 PROS V1.0 or X431 PRO3S+ can refer to the solution below to fix the issue. Error Warning Message: "Bluetooth connection attempt failed many times, please try the following suggestion" Check whether the Bluetooth connection has been powered on or near the effective distance(10 meters). If the Bluetooth connector is used with other equipment, please enter the other equipment and open the system Setting program, switch to the Bluetooth item, unpair the Bluetooth connector, go back to current equipment Diagnostic application to pair and connect the connector again. Otherwise, open the system Settings program switch to the Bluetooth item, unpair the VCI, go back to Diagnostic application to pair and connect the VCI again. Restart the host, enter into the diagnostic application syst...