Batteries are ok button is ok usb cabl is ok
I just resolved this issue on mine. By holding down the power button when hooked to the computer via the USB cable, I was able to "force" the GPS into mass storage mode. I went to "my computer" icon and clicked on the Oregon 450 to be able to view it's hard drive contents. Open it up, delete all .gpx files for the .gpx folder. I then went to Garmin.com and downloaded/ reinstalled the current software for the gps. All this allowed me to perform the "Master Reset" function and restore the Oregon 450 to it's original functioning. Mater reset is described as follows: touch the upper left corner of the display screen and continue to hold the touch while depressing the power button. As the GPS powers up, continue to hold the touch in the upper left corner until the message screen displays : do you want to reset, press yes then it is complete. Worked for me...maybe you too!
) to start a Power On/Off cycle. Do not hold down the button Figure 1: Press and quickly release the Power button If you press and hold the Power button too long, the product might turn
on and then off without restarting. If this happens, press and quickly
release the Power button (
) again.If these steps resolved the issue
, you do not need to continue troubleshooting.If the issue persists
, continue to the next solution Solution two: Check the electrical connections and outlet Unplug the power cord from the electrical outlet, or the power strip or surge suppressor Carefully inspect the power cord for visible damage.If the power cord or power module shows any damage, contact HP to replace the power supply. Disconnect the power supply from the rear of the product.Wait at least 30 seconds, and then plug the disconnected power supply
into an electrical outlet. Do not use a power strip or surge suppressor.If the green light (LED) on the power supply does not light up, contact HP to replace the power supply.Reconnect the power module to the product. Press and quickly release the Power button (
) to turn the product on.If the product still does not turn on, connect the product to an electrical outlet in another room, and then
quickly press and release the Power button (
) to turn the product on.If the product turns on
, the electrical outlet in the original room caused the issue.If the product still does not turn on
, continue with the next solution.Solution three: Check the USB cable Disconnect the USB cable from the rear of the product.Figure 2: Disconnect the USB cable from the HP product Press the Power button (
) to turn on the product.If the product turns on with the USB cable disconnected
, replace the USB cable If the product still does not turn on
, continue to the next solution.Solution four: Check the battery If your HP product has a battery, follow these steps:Check the battery light. If the light is red,recharge the battery.If the battery light is still red after recharge, replace the battery.Figure 3: Removing a battery (example only) 1 - Slide the battery release slider in the direction of the arrow 2 - Remove the battery Instructions for recharging and replacing a battery are available on the HP Web site.Solution five: Replace the power supply If
you have completed all of the troubleshooting steps and are still
experiencing a problem, contact HP to replace the power supply for your
product Solution six: Service the product If you have completed all the preceding steps and are still experiencing a problem, service the product
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