OBDSTAR KeyMaster G3 | ECU Flasher | Software License
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The OBDSTAR KeyMaster G3 ECU Flasher software license unlocks ECU Flasher functionality on the OBDSTAR KeyMaster G3. This license grants users access to ECU programming and flashing capabilities that enable control modules to be rewritten, cloned, or updated. The license is designed for automotive technicians and key specialists who perform ECU work alongside key programming services. The license is valid for 1 year from the date of activation and is tied to the serial number of your device.
Throughout the license period, users can download software updates and fully utilize the ECU Flasher module on the registered device. A stable internet connection is required for initial activation and to retrieve updates. Once the license expires, ECU Flasher functionality becomes disabled unless a renewal is purchased; the device will then operate only with the currently installed software version without further updates. To continue, a new update license is required. License processing is handled digitally following your order.
KEY BENEFITS
IMPORTANT NOTES
Features and Capabilities
The OBDSTAR KeyMaster G3 ECU Flasher software license activates the ECU programming module on your diagnostic device. All the capabilities below are available on your paired unit throughout the license period.
- Read ECU: Extract existing software and data from engine or transmission ECUs for backup and diagnostics.
- Write ECU: Program software files to the ECU for repairs, component replacement, or reprogramming.
- Clone ECU: Transfer data from an existing ECU to a replacement module, enabling the new unit to communicate with the vehicle.
- Software Updates: Download new vehicle coverage and enhanced ECU protocols during your license term.
- OBD and Bench Support: Perform ECU operations via the OBD port and, where supported, through direct bench connection.
Compatible Devices
This software license works exclusively with the following diagnostic device:
- OBDSTAR KeyMaster G3
What's Included
- 1x OBDSTAR KeyMaster G3 | ECU Flasher | Software License
How It Works in Practice
Activation happens digitally in just a few steps. Here's how the license gets linked and activated.
- Find Your Serial Number: Note the 12-character serial number of the OBDSTAR KeyMaster G3.
- Placing your order: Enter the serial number in the comments field during checkout.
- Digital processing: The license will be automatically linked to your specified device serial number within 1 business day.
- Connect your device: Power on the KeyMaster G3 and connect to a stable internet network.
- Download updates: Open the update or upgrade module from the menu and download the released ECU Flasher software.
- Using ECU Flasher: Launch the ECU Flasher module and perform your desired ECU operations within your license period.
Serial number information
To activate your license, you'll need the 12-character serial number of your KeyMaster G3. You can find this number in the following locations:
- Back of the device: The serial number is printed on the label or sticker on the back of your KeyMaster G3.
- Info or settings menu: The serial number appears in the system or about screen of the KeyMaster G3 software under device information.
- OBDSTAR account portal: Once your device is registered, you can find the serial number in your linked account environment.

