Firmware Updates for OBDLink & OBDLink S
Here you will find short summaries of changes between the different firmware revisions. Developers should read the detailed changelog found inside the respective update archive. To install an update, download and extract the archive, then run StnFirmwareUpdater.exe.
Important Notes
- If you have an OBDLink with Bluetooth option, be sure to switch the Bluetooth baud rate to 115.2 kbps before upgrading the firmware from version 2.0.2 or older to version 2.1.0 or newer. Alternatively, you can manually set the baud rate to 38.4 kbps.
- Some diagnostic software may not work with versions 2.1.0 and above. Check to make sure your software supports 115.2 kbps before upgrading, or manually set the baud rate to 38.4 kbps.
- Downgrading from version 2.x.x to version 1.x.x will cause all programmable parameters (AT PP) to be reset to factory defaults.
Latest Version 2.2.2
Release Date: January 11, 2011Level of Importance: Recommended
Download
This release fixes a few minor bugs and introduces the following new features:
- Voltage-based PowerSave triggers
- Higher precision voltage measurement
See obdlink-changelog.txt inside the archive for more details.
Version 2.1.2
Release Date: August 25, 2010Level of Importance: Recommended
Download
Bugfix release (see obdlink-changelog.txt inside the archive for details).
Version 2.1.0
Release Date: June 24, 2010Level of Importance: Recommended
Download
This release changes default baud rate to 115.2 kbps.
Version 2.0.2
Release Date: June 24, 2010Level of Importance: Recommended
Download
Bugfix release (see obdlink-changelog.txt inside the archive for details).
Version 2.0.1
Release Date: June 8, 2010Level of Importance: Recommended
Download
This major release introduces the following new features:
- PowerSave functionality
- Support for the SAE J1939 (protocol for heavy-duty vehicles)
- Custom CAN protocols
- Support for majority of the new ELM327 v1.4 functionality
- Changes aimed at improving the stability of communication with "problem" vehicles


