Software & setup

Get your kit ready

Choose your device and follow the setup path for your kit.

Windows: VF Tuner 4.5

One installer supports WiFlash and compatible Legacy devices. Choose the driver for your hardware below.

Download VF Tuner 4.5 for Windows
Help with a Legacy device

Legacy devices support most Gen1/Gen2/Gen3 Toyota/Lexus vehicles, including K Line. K Line logging and other features require WiFlash. Legacy software compatibility is expected to end after 2026; contact support about hardware upgrades.

Contact support

Android: WiFlash app

Use the Android setup path for your WiFlash kit. The Windows installer and USB driver above do not install an Android app.

Contact support for the current Android app link and setup instructions for your kit.

Get Android setup help

Already have the app? Include its version and your phone model if you need help connecting or activating.

The mobile workflow supports Android. An iPhone app is not currently offered here.

Your Windows setup checklist

  1. Confirm the vehicle and hardware

    Check your exact vehicle, engine, ECU and any required connection cables before starting.

    Check supported vehicles

  2. Install the software and driver

    Install VF Tuner, then use the software & driver guide for your WiFlash or Legacy device. Some PDF screenshots show an earlier software version.

    Software & driver guide (PDF)

  3. Register your Windows device

    The Windows registration guide explains how to send your order number and device serial to support. If you bought through a dealer, contact that dealer for registration help.

    Windows registration guide (PDF)Request activation help

  4. Identify the ECU and find the matching file

    Use the Primary Calibration ID reported by the software. Select only the exact matching file. Available stock files and tunes depend on the vehicle and your license.

    Calibration downloader guide (PDF)

  5. Follow the flashing guide

    Confirm the correct vehicle template, required cables and exact calibration match. Follow the current guide and every on-screen power, connection and ignition instruction.

    Current flash tool guide (PDF)
Earlier overview & more help

The earlier complete setup PDF is kept for reference. Some links and screenshots are older; use the current guides above. For recovery, use the support path above instead of the obsolete recovery instructions linked in that PDF.

Video setup guides

Follow the series from basic setup through datalogging.

More videos on YouTube