OBDSTAR X300 Pro3 change KM for Mazda 3/6/CX7/CX9

Original OBDSTAR X300 Pro3 Key Master key programmer update software to support mileage correction For Mazda 3/6/CX7/CX9 by OBD directly, we have customers feedback very good for new update, but we also received some feedback which failed, after checking the data from our customer, following are the solutions:

This 2 pin instrument can be done by OBD Directly



This 4 pin instruments need to remove the dashboard, can not be done by OBD directly, please attention:




If you have a vehicle which can not change mileage by OBD, please save your data and shot pictures to give us feedback. Do it as follows:
1 Power on OBDSTAR Key Master – Start – System Settings – Data Logging – Open -ESC return to main menu;

2 Matched vehicle normally, if prompted match fails, unplug the power and the machine;

3 Save the log file data for your matching process to the memory card folder

4 Send the log folder and pictures to our email.Note! Each time when you Unplug the machine, the data record is automatically turned off, so if next time you want to save the data, you need to follow the abovesteps to re-open the data record.