What is the reason why the Haval electronic key always fails to sense?

[Ralph]

Haval electronic key always fails to sense for the following reasons: Insufficient key battery power: The battery used in the remote key is generally an ordinary button-type battery, with a rated working voltage of about 3.3V. Under normal circumstances, the service life can generally reach 2 years. Signal interference: Placing the key together with devices such as mobile phones, laptops, and power converters may cause interference. Since radio devices like mobile phones, laptops, and power converters emit wireless signals that can interfere with the smart key, the key should be kept away from these devices during use. Fault in the vehicle oscillator or related components: This may result in the failure to form an effective electronic oscillation area, thereby preventing the key from being scanned and recognized.