LAUNCH X-431 V+ V4.0 User Manual
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Note: Before registration, please make sure the network is properly connected.
After the tablet has been successfully reset, follow the steps below to download
the App:
1. Launch the browser and the default official Launch website opens (If a blank
page pops up, just type in www.x431.com in the input bar).
2. Tap “Login”, input the username and password and tap “Log In.”
3. Make sure that the serial number is correct, tap “APP application program”
and tap the Download icon to start downloading.
4. After the download is complete, follow the on-screen instructions to install it.
5. After installation, use the existing username and password to login and go to
update center to download the diagnostic software.
6. What to do if the language of vehicle diagnostic software does not
match the system language?
English is the default system language of the tool. After the system language is
set to the preference language, please go to the update center to download the
vehicle diagnostic software of the corresponding language.
If the downloaded diagnostic software is still displayed in English, it indicates
that the software of the current language is under development.
7. How to retrieve the login password?
Please follow below steps to proceed in case you forgot the login password:
1. Tap the application icon on the home screen to launch it.
2. Tap [Login] button on the upper right corner of the screen.
3. Tap "Retrieve password".
4. Input product S/N and follow the on-screen prompts to retrieve the password.
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