MAHLE eX1 Manuel D'utilisation page 7

3.5. Updating process
The system can be updated using the micro-USB port on the active charger.
To perform an update, you need to connect the charger to your computer
and transfer the update files to the charger. Please follow this process.
3.5.1 Uploading files to the Active Charger
1. Disconnect the charger from the power outlet. There should be no LEDs
lit up.
2. Connect the charger to your computer using the micro-USB port.
The charger LED and the HMI will turn BLUE.
Copy the extracted update files (update_MUT.bin) to the new Drive Unit
(MAHLE_UTOOL), which will appear on your computer, and safely eject the
new drive unit from your computer.
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