See here for the Change Log - http://e-motionproducts.com/updates/nGauge/beta_changelog.html

  1. Place firmware file onto your SD card, one of two ways:
     
    1. Via USB to nGauge connection:
      1. Connect nGague to PC via mini USB cable.
      2. Go to "Settings > USB SD" in your nGauge menus. nGauge should then be recognized as a drive by your PC.
      3. Place the downloaded firmware file on the root of your SD Card. Do not rename the file.
          Older firmware files can stay.SD Root Directory
      4. Go to Step 2.
         
    2. Via SD Card inserted into PC (if you have a microSD adapter):
      1. Remove SD Card from nGauge and insert into appropriate adapter to connect to PC.
      2. Place the downloaded firmware file on the root of your SD Card. Do not rename the file.
          Older firmware files can stay.SD Root Directory
      3. Remove the SD Card from your computer and insert it into your powered-down nGauge.
      4. Apply power to the nGauge.
      5. Go to Step 3.
         
  2. Update the firmware via "Diagnostics > Settings > Update from SD". Wait for process to complete.
     
  3. New FW version should be displayed in "Diagnostics > Settings > Device Info".
     
    1. If the update is unsuccessful or not found, repeat the procedure.
    2. If the repeat fails, contact support@e-motionproducts.com
  4. After you update you will need to do a Gauges re-scan. Do this on the nGauge by going to "Gauges" then tapping "Rescan Vehicle". This will reset all of your Gauges settings and go to a default layout, but it will ensure you have access to the latest parameters.