This package provides a Kotlin-based Launch X431 PRO3 Android application (build V7.05.030) adapted for use with compatible Bluetooth VCIs such as Thinkdiag 2 and Ediag Plus. It brings the classic Launch tablet interface to standard Android phones and tablets with improved support for different screen resolutions and a more modern runtime.

The app uses the familiar Launch workflow for intelligent diagnosis, local diagnosis, service functions, TPMS, ADAS support and diagnostic history. It is designed to work with standard X431 vehicle software folders stored on internal memory or SD card so you can keep all brand databases under a single device-specific path.


Key functions

• Full Launch X431 PRO3 style home screen with Intelligent Diagnose, Local Diagnose, Service Function, TPMS, ADAS, Mall, Vehicle Coverage and Info Center
• Support for Thinkdiag 2 and Ediag Plus Bluetooth VCIs with standard connection, VCI management and firmware update menus
• Vehicle-specific diagnostic software loading from cnlaunch\X431Pro3S\<serial>\DIAGNOSTIC\VEHICLES\ with wide brand coverage for passenger cars and light commercial vehicles
• Live data display, plotted data, special functions and basic coding/adaptation menus similar to original X431 tablets
• User Info and cloud services area with report storage, subscription card entry and profile management for workshop accounts
• Settings area for units, shop information, printer configuration, display order, cache cleaning, and optional auto-update control

Brief and clear:
This app is intended for the devices shown below. Its main advantage is that you can make Thinkdiag 2 and Ediag Plus work with the original X431 brands in the Launch x431pro app by copying the stock brand files to the path specified in “What this build does”. No edits to the brands are required — everything is handled in the app itself, and it works alongside the official Thinkdiag+ application.


Version highlights

• Kotlin-based UI tuned for phones and tablets with different resolutions and aspect ratios
• Refined menu layout for "More", "User Info" and "Settings" sections including Toolbox, Flash data management and Diagnostic Software Clear
• Improved handling of GPS: the app does not force-enable location on Android 13+ if the user prefers to keep GPS disabled
• Compatible with existing Launch X431 PRO3 / PRO5 brand databases placed under the standard X431Pro3S\<serial>\DIAGNOSTIC\VEHICLES

Package contents

• X431_PRO3_V5_APP_V7_05_030.apk – Launch X431 PRO3 multi-resolution Android client (Kotlin build)

Compatibility notes

• Designed for Android phones and tablets used with Launch-compatible Bluetooth VCIs such as Thinkdiag 2 and Ediag Plus
• Vehicle coverage depends on which X431 brand software folders are available under the cnlaunch\X431Pro3S\<serial>\DIAGNOSTIC\VEHICLES
• Online functions, cloud services and firmware updates may require a valid Launch account and active subscriptions where applicable
• Actual diagnostic functions available for each vehicle vary by region, model year, ECU type and software version

Basic usage

• Install the APK on a supported Android device and complete initial setup
• Sign in with your Launch workshop account if you plan to use online services or cloud report storage
• Copy your legally obtained X431 vehicle software folders into cnlaunch\X431Pro3S\<your serial>\DIAGNOSTIC\VEHICLES\ on the internal storage or SD card
• Pair the device with a supported Thinkdiag 2 or Ediag Plus VCI via Bluetooth and confirm connection inside the app
• Select the desired vehicle brand, model and system, then run diagnostics, read data or perform service functions as needed

Operating systems
The application is intended for modern Android devices and has been tested on recent builds.

• Android 7.0 and 7.1
• Android 8.x and 9
• Android 10 and 11
• Android 12 and 13 with Kotlin runtime and Google Play services present

Minimum system requirements

• CPU: Quad-core ARM processor or better
• RAM: 2 GB or more (3–4 GB recommended for heavy diagnostic use)
• Storage: At least 2 GB free space for app, vehicle brands and diagnostic reports
• Display: 1280×720 or higher resolution for comfortable use on phone or tablet
• Other: Bluetooth module for VCI connection, stable internet for online functions, local administrator rights to install APKs from trusted sources

Disclaimer
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