Launch X431 v 8inch tech support

This write-up about Launch X431 V diagnostic firmware update manual will help to solve the error: launch x431 Err DiagnoseMain ID: -5.

Launch x431 error message:

DiagnoseMain Err ID: -5

Failed to obtain firmware information.

Possible reasons:

1 Firmware does not work normally. Please retry after power off and on again

2 Firmware program is abnormal. Please update it

3 Firmware type is incorrect. Please contact the local dealer…

How to solve Launch x431 DiagnoseMain Err ID: -5:

(also How to update Launch x431 firmware

Go to Menu
then Firmware Update

Launch x431 firmware update successfully.

Now the newest x431 v 8 inch firmware version is 11.49.

The x431 launch firmware update guide is for ORIGINAL Launch x431 scan tools at http://www.obd2eshop.com/wholesale/brand-launch-x431/

Enjoy!