If you want to make your X431 (X431 Master, X431 GX3, X431 Diagun) to work with any serial number software, you need buy the following chips. Note: 1, The chip with new serial number is used to replace the old chip in your X431 machine, without software inside. We will send you a link to download the software.

• X431 Idiag Review
• X431 Idiag Serial Number Lookup

X431 Idiag Review

If you want to use yourself serial number, ok, no problem! We can make the chips comming with your specified serial number. You should be skillful to solder it to your X431 machine. No Return parcel accepted! 4, Before you buy this product, please note which chip is inside your box.

X431 Idiag Serial Number Lookup

5, Please choose one language only! 6, After you receive the chip and install it on your machine, please contact us to send you the software!!! Arduino delphi serial communication protocols. About Diagun, after change the serial number, you need match the Main Unit and Bluetooth Connector.

Hey guys, here you will find how to change a serial number on most x431 devices, i don't know about newer ones but i have been able to change and update the serial number of one gx3 and another x431 tool today. Open up the launch and read the MPU on board 'W77LE58' inside you will find the serial number and u can change it to whatever you want, if you can't do that, just send me your serial number and the file, i will edit it and send back to you I use TOP programmer but anyother programmer will do, beeprog etc.