How to update OBDSTAR X300 Pro3 key master to latest version

Update OBDSTAR X300 Pro3 key programmer to better proform immobilizer likr SKP900 and odometer adjustment, EEPROM/PIC and OBDII… Here is the step-by-step instruction on how to update X300 Pro3.


Part 1 – How install X300 PRO3 update tool

Download the update tool and diagnostic software on, double click , then go to the next step:

Step 1:Click “Next”


Step 2: Click “Next


Step 3: Click “Next”


Step 4: Click “Finish”


Part 2 – How to update X300 pro3 software

After Update Tool installation completed, click the Update Tool software icon on desktop to start the update tools. Operation steps as following:


Step 1:Open update tool


Step 2: Click the source menu, choose the program you want to update, click it and confirm


Step 3: Click and select all the software then click “update”

Step 4: Wait for several minutes then the update finished


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