Can a malfunctioning car navigation touchscreen be calibrated?
2 Answers
Car navigation touchscreen malfunctions can be calibrated. First, determine the discrepancy between the stylus point's actual position on the screen and its displayed position. For example, when the stylus touches the screen, the display might show it 1 cm to the left. Enter the calibration program, which will display five crosses on the screen. Do not tap the center of the crosses; instead, tap 1 cm to the right of each cross center (opposite to the direction observed in the first step). After tapping all five points, the calibration program will automatically exit, completing the process. Components of car navigation systems: The system mainly consists of a main unit, display screen, operation keyboard (remote control), and antenna. It enables digital intelligent navigation for field surveys and travel, featuring accurate maps, geographic information, and clear route guidance. Functions of car navigation devices: Car navigation systems include GPS global positioning, automatic voice navigation, optimal route search, and other features. They allow drivers to always know their exact location and navigate the shortest routes smoothly.
I also encountered an unresponsive car navigation screen last time, poking at it for a long time with no reaction. Actually, many car models come with a built-in touch calibration program. Look for a screen calibration function in the settings menu, and after entering, you'll be prompted to tap the cross marks on the screen in sequence. However, note that calibration can only fix minor offset or jitter issues. If the screen doesn't respond at all or certain areas are unresponsive, it's likely a hardware failure. In such cases, don't try to fix it yourself—head to a repair shop for a check-up immediately, as it could be due to loose internal wiring or a damaged touch layer. It's best to avoid using sharp objects to poke the screen in daily use; applying a tempered glass screen protector can significantly reduce the risk of scratches.