These are some common tools used to work on this device. You might not need every tool for every procedure.

For answers or help you can visit our troubleshooting page. Troubleshooting.

The Garmin Dezl 770LMT is at 800x480 pixel GPS released in 2015 as a fully functional GPS specialized for truckers; some functions include easy route shaping, TruckDown POIs, and headset support. The Dezl 770 is 7.8”W x 4.77”H x1.0”D, with a large screen (7” Diag.) made to provide route information at a glance. The device is easily identified by looking at the stand mounting plate on the back of the device. This removable piece on the back of the GPS will show the title of the device, dēzl 770LM, it's Model Number (A4ATGB02), your unique Serial Number, and the FCC Disclaimer.

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