Losi: Xcelorin Downloads

For valuable service information regarding Xcelorin Brushless Motors and ESCs please visit the Xcelorin section of the
Losi Forum.

Below you will find the links to the latest software updates for Losi's Xcelorin Brushless Systems. The following downloads will enable you to configure your Xcelorin ESC.

Xcelorin Software Installation Requirements:

  • Windows Operating System preferably Windows XP or higher
  • An available USB port, (version 1.0 or 2.0)
  • You must have FULL Administrator rights on your computer to install
    • If using Windows Vista you may find you need to login under the Administrator account
    • Windows Vista 64 bit operating system is currently not supported
  • You may need to temporarily disable your Anti-Virus Software only to complete the install of the hardware drivers

Please read the Xcelorin Software Installation Instructions before downloading and installing the Xcelorin Software Setup Program to your machine.

Do not attempt to install a lower version of firmware to your ESC without first contacting product support productsupport@horizonhobby.com. Failure to do so may result in damage to your ESC.

You must right click the file and select "Save As" in order to download the file correctly.

Xcelorin Software Setup Program for ALL Xcelorin ESCs
Version: 3.0

Date: August 28, 2009
File Size: 2.55 MB

Uninstall previous Xcelorin Software Setup Programs before updating to this version.

Firmware for 1/18 Xcelorin Sensorless ESC (LOSB9535) ONLY
Version: 1.5

Date: February 13, 2009
File Size: 42 KB
Release Notes: Updates for braking function and feel

Firmware for 1/18 Xcelorin Sensored Crawler ESC (LOSB9536) ONLY
Version: 04

Date: March 4, 2010
File Size: 39KB
Release Notes: Initial release of 1/18th Scale (1.9) Brushless Crawler ESC firmware.
Firmware for 1/10 Xcelorin Sensorless ESC (LOSB9515) ONLY
Version: 3.4

Date: April 1, 2009
File Size: 42 KB
Release Notes: Updated to eliminate occurrence of ESC going into reverse after frequent connection/disconnection from PC.
Firmware for 1/10 Xcelorin Sensored ESC (LOSB9500) ONLY
Version: 3.0

Date: May 5, 2010
File Size: 40 KB
Release Notes: Updated to include the ROAR approved 0* Timing Mode used for Sportsman Stock racing classes. To enter this mode, please select "Very Low" in the Motor Timing drop-down menu. When this mode is selected, the Blue LED will constantly flash when the ESC is turned on to indicate the 0* Timing Mode is currently functioning
Firmware for 1/10 Xcelorin Sensored Crawler ESC (LOSB9501) ONLY
Version: 05

Date: March 4, 2010
File Size: 39KB
Release Notes: Initial release of 1/10th Scale (2.2) Brushless Crawler ESC firmware.

For users upgrading their non-crawler 1/10 Xcelorin Sensored ESC (LOSB9500) with this firmware you may receive a read error after the upgrade. This is due to the fact that the information stored on the ESC is different for these two versions. After you have upgraded the firmware, ensure that there are values selected for each available option and then send the settings. This will store the correct options in the ESC and clear the error message.
Firmware for 1/8 Sensorless ESC (LOSB9516) ONLY
Version: 2.3

Date: December 3, 2009
File Size: 43 KB
Release Notes:Fixes braking issues. Must be used in conjunction with Version 3.0 of the Xcelorin Software Setup Program.

If you need to return your Xcelorin item to Product Support for any reason, please include a completed copy of the Xcelorin Product Support Form.