What to Do When the In-Car Network Signal is Poor?
2 Answers
Tear off a piece of the heat insulation film to allow the signal to come in, though it will definitely affect the appearance. Remove the original heat insulation film and replace it with amber optical heat insulation film that does not block signals, so amber optical nano-ceramic film will not interfere with the signal. Install a signal amplifier, which consists of two parts: inside and outside the car. Place the inside part in the A-pillar and the outside part under the shark fin antenna. Electrical interference, such as an MP3 plugged into the cigarette lighter or a turned-on dashcam, can be addressed by unplugging the MP3 or turning off the dashcam.
Poor in-car network signal is indeed frustrating, and I used to face this issue often. First, check if your phone or device is set up correctly, such as turning off airplane mode or ensuring the network is enabled. Environment plays a key role—signals are inherently unstable in tunnels, high-rise areas, or rural zones, so try moving to an open area for better reception. Hardware upgrades can make a significant difference; I once installed a signal booster at the roof antenna position, which worked much better than the factory-installed one. Metal objects cause major interference, so avoid placing your phone on the metal dashboard cover—opt for an anti-interference mount instead. Humid or hot weather can also weaken signals, so downloading offline maps and music in advance is a smart move. Regularly clearing device cache ensures smooth performance, or consider switching to an external USB modem. In short, troubleshoot step by step, from simple fixes to professional upgrades, for a safe and efficient solution.
