How to update OBDSTAR X300 PRO3 Key Master

OBDSTAR X300 PRO3 Key Master is new key programmer for universal car brands,and it will be perfect replacement of SKP900 key programmer and x100 pro.X300 PRO3 is with modern design and high-definition true color screen realize the integration of automotive industry and electronic information technologies and make auto diagnosis and key programming easier, practical and economical.

key master

Steps on How to update OBDSTAR X300 PRO3 Key Master

1.Update Tool software installation

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


X300 PRO3 Key Master

X300 PRO3 Key Master

Then finish installing update tool

2.Software Updating

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

OBDSTAR X300 PRO3 update

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

X300 PRO3 update

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

Step 4: Wait for several minutes then the updating finished

x300 update

Note:For new update software and questions during updating, please fell free to contact us.