x3utils

README in progress …

x3utils

ST-LINK utilities for X3 / 3rd-generation scooters.

Supported models: ZT3 Pro, Max G3, F3 / F3 Pro.

Quick Start

Watch the quick video first.

This short video shows the normal Windows + clone ST-LINK flow: launcher on one side, test board and C45 timing on the other.

Quick steps:

1. Download the latest x3utils release.
2. Open x3utils_win.
3. Run launcher.bat.
4. Select B - C45 / Clone ST-Link.
5. Run option 2 first to make a full 128 KB backup.
6. Do not flash anything until the dump works.

If option 2 works, your ST-LINK connection is probably good enough for the next steps.

What This Tool Does

The launcher has five main actions:

[1] Flash SHU compatible

Dumps your current VCU firmware, patches it, and flashes it back for SHU-compatible workflows such as flashing from repo or changing serial. Use at your own risk. More info >

[2] Run Full Memory Dump (128 KB)

Makes a full backup. Run this first. More info >

[3] Flash Loaded File to Chip

Flashes the .bin file selected with option 4.

[4] Load / Change Target .bin File

Selects the .bin file to flash. Normal firmware files must be exactly 128 KB.

[5] Exit

Closes the utility.

Connection Modes

A - Default / Blinker buttons

Use this when SWD is available, either normally or by holding the turn indicator buttons during power-up. More info >

B - C45 / Clone ST-Link

Most common mode. Use this with clone ST-LINK adapters. The launcher tells you when to touch C45 to GND. More info >

C - C45 / Genuine ST-Link

Use this with a genuine ST-LINK adapter and its reset pin connected to the MCU reset line at C45. More info >

More Documentation

• Windows guide
• Linux guide
• macOS guide
• Wiki home