🔦 How to flash the devices
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How to flash OBD or C4Max V8


Requirements before starting.

The following tools/files are required to update/flash a Mobile-Devices device:

  • A pen drive or SD-card reader with a SD-card (more than 512MB)
  • A Munic flashing cable (see the pictures below)
  • A 13.8V power supply (see the pictures below) - optional if you plug the device in a vehicle)
  • An OBD plug (either a cable or the OBD plug from the vehicle)
  • The MDI_PCK* obtained only from your Munic contact

Here is the flashing cable you will need:

In this picture, note that the mechanism is similar if you have a C4Max (blackbox) or an OBD Dongle.

Prepare your PenDrive or your SD Card

  1. Format your PenDrive or SD Card using FAT32 format.
  2. Extract the content of “MDI_PCK*” archive on your computer.
  3. Copy at the root of the pen drive the content of the “sd” folder.

Flash the Device

  1. The device's battery must be fully charged, otherwise the device will refuse the flashing resulting in a fast red flashing.
  2. The device must be OFF, not connected to any power supply and its internal battery OFF, so the device LED must be dead, i.e: Not Blinking at all,
  3. Connect the pen drive to the device using the Flashing cable
  4. Turn the device ON (plug it to car or to a Laboratory Power Supply),
  5. Check the LEDs to know the update status :
StartingProcessingCritical ProcessingDoneFailed

Once updated, unplug the pen drive and do a power cycle (Unplug/Replug the device from power).

Then if you browse the pen drive you will see 3 new files:

  • kern.log (log)
  • log_update.txt (log)
  • update_done

If update_done is present it means that the the device has been flashed properly.

Important note:

The device must detect the USB key within one second. Please use a USB key with a maximum capacity of 16 GB.