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Firmware update

Firmware updates are installed from the Firmware Update page in the web interface. Download the latest firmware from the Downloads section on the Uberlogger website: www.uberlogger.com/#downloads.

A firmware release ships as a zip file containing three binaries that must all be flashed together:

  • ota_main.bin — ESP32 main application (web server, logger logic, REST API).
  • ota_support.bin — STM32 support-chip firmware (ADC sampling, digital inputs, RTC).
  • ota_filesystem.bin — filesystem image containing the web interface.
Before you begin
  • Disconnect all sensors and signals from the inputs (AIN / NTC and DIO). Signals on the inputs can stop the support chip from being updated.
  • Stop logging and make sure an SD card is inserted.
  • Do not power off the Uberlogger during the update. This may brick it.

To update the firmware, follow the next steps:

Step 1
  • Extract the zip with the firmware files into a directory.
  • In the web interface, go to Configuration › System and click Update firmware.

The Firmware section on the System tab of the Configuration page

Step 2
  • Choose the ota_main.bin, ota_support.bin and ota_filesystem.bin files for the matching rows. Each row turns green with a check mark when the right file is chosen.

The Firmware Update page with all three files chosen

Step 3
  • Click Upload & Update and confirm the message with OK.
  • The page shows the progress while each file is uploaded, and then while the firmware is flashed.
  • The green LED on the Uberlogger flashes while the update is in progress. The full update typically takes about 70 seconds.
  • Your PC may disconnect from the Uberlogger Wi-Fi while the device restarts; reconnect manually if needed.

The update in progress

Step 4
  • After flashing, the Uberlogger restarts. The page waits up to two minutes for it to come back online, and then checks which firmware is running.
  • Update complete with "Now running …" means the new firmware is installed. The green LED is constantly on again.

Update complete

From firmware v1.3.4 on, the update files are removed from the SD card after a successful update.

If the update fails​

If the page shows Update failed, the Uberlogger is still running the previous firmware. Disconnect all sensors and signals from the inputs, switch the Uberlogger off and on again, and retry the update.

If the page does not report back within two minutes, wait until the green LED stops flashing, reconnect to the Uberlogger and check the version under Configuration › System.

If the update keeps failing, contact customer support.

Note

If a web-interface login is enabled, the browser may ask you to log in again after the device has restarted.