Recovery of CANDICE Displays

If a CANDICE display is in an undefined state,
it can be brought to the delivery state.

Applicable to these Products

Procedure:

  1. Prepare an empty directory on your PC anywhere, e.g. C:\Temp\CandiceRecovery.
  2. Download the Recovery-Tool and unzip it in the directory.
  3. Download the operating system image and unzip it into the directory:
    Download V2.3 (recommended)
    Download V1.4 (elder)
  4. Connect the mini USB port of the CANDICE display to a USB port of your PC.
  5. On the CANDICE device, press the recessed recovery button and raise the supply voltage while the recovery button is pressed. Make sure that the supply is activated either by terminal 15 or openABK.
    Recovery CANDICE-4   Recovery CANDICE-7 V2..4   Recovery CANDICE-7 V5 up
  6. Install the driver for the Recovery-Tool by clicking with the right mouse button in the device manager to Other devices -> APX and Update driver Software... . Then click on Browse my computer for driver software and navigate to the directory containing the driver (in the example C:\Temp\CandiceRecovery\usbpcdriver_32_64). Confirm the installation.
    Recovery
  7. Start the batch file Update.bat and eventually confirm safety information by clicking on Further information) and then choose the file ce7.cfg.
    Image file
  8. Wait until the flash process completed (approximately. 10...20 seconds) and the message Press any key to continue... appeared.
    Console output
  9. The CPU now works with a standard image and outputs a start sound after a few seconds. Occasionally, you may not be able to see anything on the screen. To install the firmware now, please follow the steps on the firmware update page.
  10. Restart the CANDICE device

Possible Complications:

  • When flashing, the console window displays a message that the device was not found.
    Make sure that the recessed recovery button is pressed when applying the supply voltage. There is a clear pressure point. Also check if NVIDIA USB boot-recovery driver for mobile devices is listed in Control Panel.
    NVIDIA driver
  • During the firmware update, a voice sounds from the speaker. If the internal device identifier (CANDICE-4 vs. CANDICE-7, device version, etc.) is inconsistent, wait until the corresponding device is mentioned by the voice and at that moment press anywhere on the touch screen. Alternatively, you can type the appropriate letter on an attached USB keyboard.
  • After the firmware update, there is no decent image to be seen (unclean edges of the fonts, flowing image).
    In this case, the resolution is incorrect because the device ID is incorrect.
    Connect a USB keyboard, set up the supply voltage and plug the USB stick with the firmware and instantly press the X-Key on the keyboard. Now, you will hear the voice. Please follow the instructions above.