Common hardware failures and solutions of GPS navigators

Let's take a look at the problems that will occur on the four common GPS hardware:

Problem 1: GPS cannot use car power

Under normal circumstances, the endurance of GPS is about 1-2 hours, so when driving long distances, you need to use on-board power supply. However, some car owners found that the warning light is always off whenever the vehicle power supply is used. After inspection, it was found that the fuse of the cigarette lighter was blown out, so the external power supply could not be used. At this time, the owner often thinks that the quality of the GPS car power supply is too poor, but after many replacements, the situation is still the same.

In fact, the reason why GPS cannot use car power is not entirely caused by the quality of car power, and part of the reason is caused by the design of the cigarette lighter.

Simple judgment and solution:

Owners can first observe whether the interface of their GPS vehicle power supply belongs to the one shown in the figure below. The A type plug will burn the fuse when it is hot swapped, while the B type plug will not. Owners can replace the onboard power supply with the B plug.

For car owners who use the car plug of the A-type interface, if they do not want to replace the car power supply, they can plug it in after starting the car and before turning off the flame to prevent instantaneous high-voltage burnout. If you think this method is troublesome, you can choose to make a simple transformation of the cigarette lighter in the car. Fold the metal sheet in the upper part of the cigarette lighter jack (red mark), so that the GPS can not use the car power supply.

Common problem 2: GPS cannot search for satellite signals

Satellite signals are the basis of GPS positioning and navigation. If you ca n’t search for satellite signals, then GPS navigation ca n’t do the navigation work, which means your GPS is just a piece of scrap iron. In general, there are three situations where GPS cannot search for satellite signals:

1. GPS belongs to the cottage among the cottages, and the "use period" is short.

2. The satellite signal is weak, and it can work normally after adjusting the position.

3. It is interfered by other electrical appliances in the car, and it can be used normally after eliminating the interference.

Simple judgment and solution:

To identify the reasons for the inability to search for satellite signals, you can try to locate in an open square. Satellite signals are easier to capture in open squares, and electrical interference in cars can be ruled out. If, under such circumstances, you still cannot search for satellite signals, then 99% of your GPS may belong to the cottage, and you should negotiate a replacement or even a refund with the purchaser.

If the signal cannot be searched only in the car, when it is close to the window or even outside the window, a weak signal can be obtained, and we can judge it as the second case. The ability of GPS to search for stars is closely related to the GPS hardware. General navigators have built-in antennas. The built-in antennas are relatively small, and the original satellite signals received are relatively weak, even unable to search for satellite signals. The owner can choose to install a GPS amplifier to enhance the GPS signal.

When using multiple electrical appliances, such as a driving recorder, GPS cannot be used normally. Then, the reason why GPS signals cannot be searched is most likely the result of mutual interference of electronic products. Because the signal bands are too close, they cause mutual interference. Owners can choose to use only one of the electrical appliances, or try to wrap the circuit board with tin foil to eliminate interference by themselves.

Common problem three: The suction cup of the GPS bracket is easy to loosen, and the back clip is easy to break

Among the GPS accessories, the bracket is the most prone to problems, especially the suction cup and the back clip part. Many car owners report that the suction cups of the brackets are of poor quality, completely sticky and unstable, and the road conditions fall off after a slight bump; the back clips are also very easy to break, and they will break once broken.

Simple judgment and solution:

In fact, the loosening phenomenon of the suction cup generally occurs after a period of use. When the round gum part of the suction cup is invaded by air, the vacuum part leaves a gap. The larger the gap, the lower the adhesion, and the easier it will fall. drop. Frequent sticking and pulling will also reduce the attachment function of the suction cup. The owner can wipe the contact position of the front windshield and the suction bracket of the navigation bracket to reduce the gap left by the vacuum part. If the loosening time is too frequent, the GPS bracket should be replaced to avoid potential safety hazards.

The breakage of the back clip is more caused by human factors. The owner's improper dismantling method makes the originally unreliable back clip easier to break. When disassembling, you should pay more attention to the direction on the back clip. Unfortunately, it is really broken, and you can buy a universal bracket for replacement.

FAQ 4: GPS screen is unresponsive

Touch screen life has become an indispensable part of our lives, and GPS is one of the earliest electronic products that use touch screen technology. The unresponsiveness of the screen will not only affect the query effect of the handwriting input, but when clicking the query, there may be deviations. Generally, there will be 2 kinds of unresponsive GPS screens:

1. The screen is damaged by sharp objects

2. Deviations in screen recognition

Simple judgment and solution:

To identify the reason for the unresponsiveness of the screen, you can select a place name by handwriting while searching for a destination. If the words in the handwriting box are always intermittent, it is difficult to coherent, and even be divided into multiple parts. Then the touch screen is likely to be damaged by sharp objects. Usually this situation will only appear after using it for more than half a year, and there is no solution. The key lies in the usual use and maintenance. For handwriting input, choose to use the GPS stylus, try not to use the fingertips for a long time to tap the screen or toothpicks like sharp objects as a substitute.

The deviation of screen recognition is generally reflected in the inability to accurately identify the range clicked by the user. For example, when the vehicle owner selects the route, he clicks on the "optimal route", but the GPS recognizes the adjacent "high-speed priority". At this time, the screen can be readjusted. General screen adjustments are located under "Settings", and GPS of different brands will be slightly different. Enter the adjustment menu, after a "ten" calibration symbol appears on the screen, follow the prompts to point the stylus to the middle of the cross and click.

Summary: When GPS malfunctions, do n’t rush to blame the quality of products sold by merchants. We should start with our own usage habits to see if we have used them improperly, which has accelerated GPS aging and damage. For GPS that does have quality problems, car owners should resolutely safeguard their own interests, replace the goods and even refund.

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