LONGRUF T20

LONGRUF 9-Inch GPS Navigator User Manual

Model: T20

Introduction

This manual provides comprehensive instructions for the LONGRUF 9-inch GPS Navigator, designed for cars, trucks, and RVs. It covers setup, operation, maintenance, and troubleshooting to ensure optimal performance and a smooth navigation experience.

LONGRUF 9-inch GPS Navigator displaying a map with 2025 New Map Free Update banner.

Figure 1: LONGRUF 9-inch GPS Navigator with map display.

What's in the Box

Upon unboxing your LONGRUF GPS Navigator, please verify that all the following components are included:

1 x 9" Touch Screen GPS Navigation Unit
1 x Car Charger
1 x MINI USB cable
1 x User Manual
1 x Car Bracket (Suction Cup Mount)

Contents of the LONGRUF GPS Navigator box including the GPS unit, car charger, USB cable, user manual, and mounts.

Figure 2: All components included in the LONGRUF GPS Navigator package.

Setup and Installation

Mounting the Device

The LONGRUF GPS Navigator offers two primary installation methods: on the windshield glass or on the dashboard.

Diagram showing two installation methods for the GPS: one on the windshield using a suction cup, and another on the dashboard using an adhesive disc and suction cup.

Figure 3: Two installation methods for the GPS unit.

Method 1: Dashboard Installation (with adhesive disc)

Clean the desired area on your dashboard where you intend to place the GPS.
Peel off the protective film from the adhesive disc.
Press the adhesive disc firmly onto the cleaned dashboard surface.
Attach the suction cup mount to the adhesive disc.

Method 2: Windshield Installation (direct suction)

Clean the windshield area where you wish to mount the GPS.
Fix the suction cup directly to the cleaned windshield surface.

Images demonstrating both dashboard and windshield installation methods for the GPS navigator in a car.

Figure 4: Visual guide for GPS installation methods.

Initial Power On and GPS Signal Acquisition

Connect the GPS unit to your vehicle's power source using the provided car charger. Upon first use or after a long period of inactivity, the device will need to acquire a GPS signal. This process can take between 5 to 30 minutes. Ensure the device is in an open area with a clear view of the sky for best signal reception.

For optimal performance, ensure at least 3 green bars are displayed in the "GPS Viewer" before beginning navigation.

A person looking at a GPS navigator mounted in a car, highlighting the sun hood feature that blocks glare.

Figure 5: The GPS unit features a sun hood to reduce glare for clear visibility.

Operating Instructions

Vehicle Mode Selection

The GPS navigation system supports 7 vehicle types: car, pedestrian, bicycle, emergency, bus, taxi, and truck. To change the vehicle mode, navigate to: Navigation > Settings > Route Settings > Vehicles, then select your desired vehicle type (e.g., Truck).

Collage of various vehicle types including car, truck, RV, bus, bicycle, and pedestrians, illustrating the 7 supported vehicle modes.

Figure 6: The GPS supports various vehicle modes for tailored navigation.

Navigation Features

Route Options: Choose from Fast, Green, Short, or Easy routes.
Search Functions: Support Postcode, Address, Coordinates, Favorite locations, and Points of Interest (POI) search.
Voice Guidance: Clear, easy-to-understand male and female voice guiding in 44 languages.
FM Broadcast: Transfer GPS sound to your car's audio system via FM. Note: This is for sound transfer, not FM radio functionality.
Safety Alerts: Intelligent Current Speed Camera Alerts, Sound Warning, Speed monitoring, and memory of speed exceeding.
Lane Assist: Provides guidance for lane changes.
Real-time Information: Displays Current Speed, Estimated Arrival Time (ETA), and Remaining Distance.
Custom Truck Routing: Customize routes based on your vehicle's weight, length, height, and width to avoid restricted roads.

GPS screen displaying a speed camera warning and a truck on the road, indicating advanced warning features.

Figure 7: Speed camera and warning display on the GPS screen.

Map Updates

The device comes pre-installed with the latest 2025 maps for North America (US, Canada, Mexico) and offers free lifetime map updates. Maps for Europe, UK, Ireland, Australia, South America, Africa, the Middle East, and Asia are also available.

To update maps, you must connect your LONGRUF GPS Navigator to a Windows PC. An external SD card may be required if the system is not compatible with Mac. Map updates are not automatic and require manual download from the official website (address found in the user manual). You will receive a RAR file; unpack it to get the [NAVI] folder. Delete the original map on the GPS and copy the new map. It is highly recommended to back up your old map before updating to prevent data loss in case of update failure.

A laptop screen showing a map loading progress bar next to the GPS navigator, illustrating the map update process.

Figure 8: Visual representation of the map update process.

Maintenance

Cleaning: Use a soft, lint-free cloth to clean the screen and exterior of the device. Avoid abrasive cleaners or solvents.
Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly.
Software Updates: Regularly check for and install map updates as described in the "Operating Instructions" section to ensure the most accurate navigation data.

Troubleshooting

Problem	Possible Cause / Solution
GPS not acquiring signal or slow acquisition	Ensure the device is in an open area with a clear view of the sky. Wait for at least 3 green bars to appear in the "GPS Viewer" before expecting full functionality (can take 5-30 minutes). Check for obstructions like tall buildings or dense foliage.
Map update fails or new maps not appearing	Ensure you are using a Windows PC for the update process. Verify the integrity of the downloaded RAR file and ensure it's correctly unpacked to the [NAVI] folder. Confirm that the old map data was deleted and the new map data was copied to the correct directory on the GPS. Ensure sufficient storage space on the device or external SD card. Refer to the user manual for the official website address for map downloads.
FM broadcast not working	Remember that FM broadcast is for transferring GPS sound to your car's audio, not for receiving FM radio. Ensure your car's radio is tuned to the correct FM frequency set on the GPS unit.
Short battery life	The typical battery life is approximately 30 minutes. For extended use, keep the device connected to the car charger. Ensure the device is fully charged before use.

Specifications

Feature	Detail
Display Screen	9 inch capacitive touch screen
Screen Resolution	800 x 480
Memory	8GB ROM & 256MB RAM
Operating System	Windows CE 6.0
USB Interface	USB 2.0
Voltage Support	12 V to 24 V (for cars, trucks, ambulances, buses, taxis, etc.)
GPS Channels	12 GPS channels for position search
Map Coverage	Pre-installed 52 countries in Europe, North America (US, Canada, Mexico). Available for South America, Africa, Middle East, Australia, Asia.
Map Updates	Lifetime Free Updates
Multilingual Support	English, French, German, Italian, Portuguese, Russian, Spanish, Finnish, Polish, Ukrainian, Hungarian, Romanian, etc. (44 languages)
Item Weight	1.1 pounds
Product Dimensions	0.77 x 0.46 x 0.05 inches
Battery Type	1 Lithium Polymer battery (included)
Battery Life	Approximately 30 minutes
Model Name	T20 256-16GB

Warranty Information

The LONGRUF GPS Navigator comes with a 1-year manufacturer's warranty.

Additionally, LONGRUF offers a 30-day Money-Back Guarantee and 12-month Replacement for product issues.

Customer Support

For any questions regarding your LONGRUF GPS Navigator, technical assistance, or warranty claims, please contact our professional technical team. We offer life-time Technical Support.

You can reach us via Amazon message, and we will reply within 24 hours.

For map updates, please refer to the official website address provided in your physical user manual.