Firmware Update on a Symbio™ 700 UC using the phone app

Firmware Update on Symbio™ 700 Products

Navigate to the Trane Controls Software & Firmware Downloads page. 

Once on the site click on the Green + to expand the Package Units & Split Systems with Symbio™ 700 section.

Once you have expanded the section you should see the following download buttons 

Download the file to a USB Flash Drive.

Note: The USB drive should be formatted as FAT32.

LCU-How-to-format-USB-drive-to-FAT32

Procedure using a mobile device to complete the Symbio 700 firmware update:

Install the USB mass storage device into the USB Host connector (J2) in the top left corner of the Symbio 700 unit controller.

1. Power up the Symbio 700 unit controller.

2. Connect to Symbio 700 UC using the Phone App.

3. Navigate to the “Tools” menu of the mobile app.

4. Select “Update Firmware”.

Navigate to the appropriate firmware file that is located on the USB flash drive and select it.

Note: The Symbio should find it for you on the flash drive.

Click Update Firmware to initiate the process, and UPDATE in the Confirm Firmware Update dialog box.

NOTE:

The Firmware Update process may take 3-5 minutes once initiated. You will be disconnected from the controller, and part way into the process the LEDs will go out on the Symbio Board, this is normal.

Watch the Symbio 700 On-Board display, it will display the following text. Validating FW, Decrypting FW, Boot Rec, Recovery, Validating FW, Decrypting FW, Updating BLE, Updating FW, Updating Kernel, Updating DT, Updating Boot1dr, Updating Recovery, then Update Success.

Then the Symbio 700 Reboot will display Load Field then Boot Field...and you're done.

After the firmware update has been completed, power down the system and remove your USB Flash Drive. You should see this when you connect back up with the Phone App.

Note: You will see the version that the unit controller was updated to.

Note: Highly recommended to update the firmware using the Symbio phone app.

Firmware update procedure using the Symbio™ 700 onboard interface

See below to download a PDF of the Updating-Firmware-on-a-Symbio-700-Controller

WARNING:

Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.