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BAZ72901-en
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Firmware Update
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MES checks the MAHA VCI firmware version while establishing communication.
If an older firmware version is running on the device, MES will prompt for a
confirmation of firmware update.
Risk of damage
The update must not be interrupted under any circumstances; otherwise, the de-
vice is at risk of damage.
The process may take several minutes, and consistent voltage supply must be
ensured throughout this process (Do not unplug the device from the male OBD
connector. Do not switch off vehicle ignition.).
6.1
Check and update firmware manually.
1 Call up the menu “VCI settings” (see section “Set-up VCI in MAHA Emission
Software Version 7.51”, steps 1 - 7).
2 If several VCI exist, select the VCI to be checked or updated by clicking the
corresponding radio button “Active”.
3 Ensure consistent power supply to the VCI (plug into the vehicle’s male OBD
connector.)
4 Confirm “Firmware Update” button
(F7).
5 Confirm safety notice.