If your scanner cannot access the SD card containing firmware and database information in your scanner, or if the SD card is corrupt, it will display an error. When an SD card is missing or not seated properly you will see:

SD CARD ACCESS ERROR!

This can typically be remedied by removing the SD card and reseating it. To reseat the SD card:

POWER OFF and/or unplug the unit

Unlock and remove the battery cover on the back of the unit

Remove the 2 batteries in the right half of the compartment

Gently push the SD card in until you hear/feel a slight click and slide the card down to remove

Gently push the SD card back in until you hear/feel a slight click and reinsert batteries and cover

Power on the scanner and check if the problem persists

If the card is seated properly but is defective or corrupt the scanner will display:

SD CARD FILE ERROR!

In this case the card will need to be reformatted and configured for the scanner with the Sentinel software to work. NOTICE: THIS WILL ERASE ALL SETTINGS AND FAVORITES LISTS ON YOUR SCANNER!

Use a microSD card reader and SD Formatter to clear the SD card (the default quick format will work fine)

Open Sentinel, go to Scanner>Clear User Data, check “show all drives”, select the disk drive of the SD card and hit OK

Go to Update>Update Firmware, select your version of Home Patrol and hit OK

If you have a list already made in Sentinel make sure the favorites list you want to monitor is set to Download>On and Monitor>On

Go to Home Patrol>Write To Home Patrol and disconnect the USB cable when the download is finished

Your scanner will automatically install the firmware file and restart when finished. You will have to set the date, time, and location information (if monitoring the Full Database)