Recovery




Forced USB Mass Storage Mode





Forced RGN Firmware Installation


Preparation


Extract RGN from GCD

  1. Download the desired GCD file from the Firmware page to the \RGN\ directory you created
  2. Extract the GCD file from the downloaded .zip file
  3. Delete the downloaded .zip file
  4. Rename the GCD file to gupdate.gcd
  5. Drag the gupdate.gcd file to RGN_Tool.exe
  6. Verify the HWID displayed in the RGN_Tool window matches your GPSr HWID
    • Montana 7x0 HWID = 3459
  7. In the RGN_Tool window, select 'File > Save to RGN' and save as gupdate.rgn in the \RGN\ directory you created
  8. Delete the gupdate.gcd file from the \RGN\ directory you created
  9. Close the RGN_Tool

Verify Progress


Flash RGN

  • Steps 6-10 must be completed before the GPSr enters Forced USB Mass Storage Mode.
  • If this happens, restart the Flash RGN process.

    1. Disconnect all GPSr from your computer
    2. Drag the gupdate.rgn file to Updater.exe
    3. After the Updater window appears, select the 'USB Device:' radio button
    4. Power the Montana 7x0 off (press and hold power button ~10 seconds to force power down if necessary)
    5. Remove and reinstall the Montana 7x0 battery pack
    6. Press and hold the Power button until the Status LED turns red
    7. Release the Power button
    8. The Montana 7x0 is now in 'Boot Block' mode, which last about 8 seconds
    9. Connect USB cable to enter forced USB Mass Storage Mode
    10. As soon as the Montana 7x0 appears in the 'USB Device:' window, immediately select 'OK'
    11. The Montana 7x0 will display "Software Loading" and Updater will display a download progress bar
    12. The Montana 7x0 may go through several update/restart cycles
    13. When complete, the Updater will display a 'Successful Update' message
    14. The Montana 7x0 will restart with the new firmware installed