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Software update

Keep your unit updated. Get the latest updates, free of charge, to keep your device running smoothly and securely. You will need an empty USB-memory (FAT32) in order to update your products.

How to update head units GMA152BTR, GMA153BTD, GMA252BTR

  1. Download the latest software for your stereo via the links below. Unzip/extract the file.
  2. Use an empty USB drive and save the software file to the USB drive.
  3. Start the stereo with the Power button.
  4. Insert the USB drive into the car stereo’s USB port.
  5. Wait for the text UPGRADE to appear on the display. When the text UPGRADE appears on the screen, the stereo will perform the program update.
  6. When the update is complete, the text UPGRADE will disappear from the display and the stereo will turn off.
  7. The update is now complete.
  8. Remove the USB drive.
  9. Reset the device by pressing the button in the hole marked RST (Reset). This can be done, for example, with a paper clip.
  10. Start the stereo with the Power button.

How to update head unit GMV651BT

  1. Download the latest software for your stereo via the links below. Unzip/extract the file.
  2. Use an empty USB drive and save the software file to the USB drive.
  3. Start the stereo with the Power button.
  4. Insert the USB drive into the car stereo’s USB port.
  5. MPEGROM will appear on the display. Press the green marker to confirm.
  6. When the text “MPEGROM Start Upgrade Don’t power off” appears on the screen, the stereo will perform the program update.
  7. When the update is complete, the stereo will restart automatically.
  8. The update is now complete.
  9. Remove the USB drive.
  10. Reset the device by pressing the button in the hole marked RST (Reset). This can be done, for example, with a paper clip.
  11. Start the stereo with the Power button.

How to update head unit MAX M140-BTX

With serial number higher than MAXM140BTX220601100

Check for which software version installed in unit.

  1. Select radio as the source
  2. Press buttons 2, 5, and 3 with about 3 seconds of pressing each.
  3. The software version will be shown in the display. (52751911111)

MCU update version 52751911114 (use attached cdp-file: maxm140btx_220601100_52751911.cdp)

  1. Download the latest software for your stereo via the links below. Unzip/extract the file.
  2. Use an empty USB drive and save the software file to the USB drive.
  3. Start the stereo with the Power button.
  4. Select radio as the source.
  5. Insert the USB drive into the car stereo’s USB port.
  6. Press buttons 2, 5, and 3 with about 3 seconds of pressing each.
  7. Wait for the text UPDATE to appear on the display. When the text UPDATE appears on the screen, the stereo will perform the program update.
  8. When the update is complete, the text UPDATE will disappear from the display and the stereo will turn off.
  9. Remove the USB drive.
  10. Start the stereo with the power button
  11. Reset the device by pressing the button in the hole marked RST (Reset). This can be done, for example, with a paper clip.
  12. The update is now complete.
  13. Start the stereo with the Power button.
  14. After the update, the stereo is reset to factory settings, so any sound settings will need to be redone.
 

DSP update (use attached cdp-file:  maxm140btx_220601100_dsp.cdp)

  1. Download the latest software for your stereo via the links below. Unzip/extract the file.
  2. Use an empty USB drive and save the software file to the USB drive drive together with one music track in MP3 format. (The MP3 track is
    important for this DSP update to work properly).
  3. Start the stereo with the Power button.
  4. Select radio as the source.
  5. Insert the USB drive into the car stereo’s USB port.
  6. Press buttons 2, 5, and 3 with about 3 seconds of pressing each.
  7. Wait for the text DSP UPDATING to appear on the display. When the text DSP UPDATING appears on the screen, the stereo will perform the program update.
  8. When the update is complete, the text DSP UPDATING will disappear from the display and the stereo will turn off.
  9. Remove the USB drive.
  10. Start the stereo with the power button.
  11. Reset the device by pressing the button in the hole marked RST (Reset). This can be done, for example, with a paper clip.
  12. The update is now complete.
  13. Start the stereo with the Power button.
  14. After the update, the stereo is reset to factory settings, so any sound settings will need to be redone.
 
 

How to update head unit MAX M140-BTX

  1. Download the latest software for your stereo via the links below. Unzip/extract the file.
  2. Use an empty USB drive and save the software file to the USB drive.
  3. Start the stereo with the Power button.
  4. Select radio as the source.
  5. Insert the USB drive into the car stereo’s USB port.
  6. Press buttons 2, 5, and 3 with about 3 seconds of pressing each.
  7. Wait for the text UPDATE to appear on the display. When the text UPDATE appears on the screen, the stereo will perform the program update.
  8. When the update is complete, the text UPDATE will disappear from the display and the stereo will turn off.
  9. Remove the USB drive.
  10. Reset the device by pressing the button in the hole marked RST (Reset). This can be done, for example, with a paper clip.
  11. The update is now complete.
  12. Start the stereo with the Power button.
  13. After the update, the stereo is reset to factory settings, so any sound settings will need to be redone.

Software download

NOTE!  When you download the software it will be in a .zip file, you need to unzip the file first and extract the software file before placing the file on a USB-memory stick.

GAS GMA151BT – 2021.09.02 – Download

GAS GMA152BTR – 2022.08.05 – Download

GAS GMA153BTD – 2021.02.26 – Download

GAS GMA252BTR – 2022.08.15 – Download

GAS GMV651BT – 2021.06.17 – Download

GAS MAX M140-BTX with serial number higher than MAXM140BTX220601100 – 2023.05.29 – Download

GAS MAX M140-BTX – 2022.09.02 – Download

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