Troubleshooting table

The following list will help you to solve minor problems yourself. Select the relevant problem description and check and perform the steps listed under Solution in sequence until the problem is solved.

Problem

Solution

mega macs PRO does not start

  • Connect the display unit with the supplied power adapter.
  • Charge the display unit.
  • Switch on the display unit again.
  • Ensure that the latest software version is installed.

Connection to VCI cannot be established.

  • Make sure that the VCI is connected to the vehicle's OBD interface.
  • Ensure that the vehicle is switched on.
  • Select the VCI in in the device list and pair it again (see section Pair the VCI).

Login in the mega macs PRO app not possible

  • Check user name and password.
  • Use the Password forgotten? function.
  • If necessary create a Hella Gutmann account.

Data cannot be downloaded

  • Check the Wi-Fi and mobile phone connection.
  • Establish the Internet connection.
  • Start the download again.

Software update cannot be performed

  • Check the Wi-Fi and mobile phone connection.
  • Start the software update again via the message or the settings menu.

MT‑HV is not recognized

  • Make sure that the USB-C cable used is suitable for data transfer.
  • Confirm the operating system connection request with >OK<
  • Establish connection again.

LED light of the VCI extension cable does not work

  • Connect the VCI extension cable with the diagnostic connection of the vehicle.
  • Charge the battery.
  • Switch on the LED light again after charging.