OBDSTAR X300 DP Plus A Full Configuration Update Service
This is an update service not a device.
One year update subscription.
Online authorization completed within 24 working hours, no need shipping.
Please email a picture of device's serial number to firstname.lastname@example.org.
Once the update subscription authorization is completed, there is no refund.
You can find the serial number on the back of the device or in the user information.