Why can't the Haval F7 suddenly connect to the 4G network?

3 Answers
LaJasmine
07/29/25 8:58pm
Haval F7 suddenly unable to connect to the 4G network may be due to a network module issue. Below is a relevant introduction about the car dashboard: Introduction to the car dashboard: With the advancement of electronic technology and the emergence of new sensors and electronic display components, automotive electronic dashboards have been rapidly adopted. Common indicators include the fuel indicator, washer fluid indicator, electronic throttle indicator, front and rear fog light indicators, and warning lights. The function of the car dashboard: The car dashboard display serves as a device that reflects the working conditions of various vehicle systems, allowing continuous monitoring of the car's status and providing drivers with necessary operational parameter information. It is an important interface for information exchange between the driver and the car.
Was this review help?
12
3
Share
MiaMarie
08/15/25 6:50pm
My Haval F7 had the same issue a while ago. It was working fine one minute, then suddenly the 4G network dropped, which really annoyed me. I rely on 4G for navigation and music while driving, so being unable to connect was a real inconvenience. I thought it might be a signal problem, but even in areas with good coverage, the issue persisted. After asking around, I learned that the 4G module in this car is prone to minor glitches—like system cache buildup causing freezes or oxidation on the SIM card contacts. I tried restarting the infotainment system by holding the power button on the center console for about 10 seconds until it fully shut down, then turning it back on. Surprisingly, it worked temporarily and reconnected. If this doesn’t help, check the network settings for any disabled 4G options or try using a mobile hotspot as a stopgap. But if this keeps happening, don’t take it lightly—head to the 4S店 ASAP. It could be an antenna failure or a software update needed, and addressing it early saves hassle.
Was this review help?
2
4
Share
Expand All
LeviFitz
10/16/25 7:41am
My F7 had a 4G outage last month, the navigation just cut out while driving, so frustrating. I suspect it's mostly the infotainment system acting up or the SIM card not seated properly. Don't panic, try troubleshooting yourself first: restart the Bluetooth and 4G functions on the dashboard; if that doesn't work, check the SIM card slot, take out the nano-SIM, clean off any dust, and reinsert it—sometimes a loose connection causes signal loss. I've experienced this before, where moisture gets into the antenna connector during humid weather, leading to intermittent disconnections. If you can't fix it, use your phone's app to connect to the car's hotspot as a temporary solution—don't let it delay your plans. Remember to regularly clear the system cache to prevent this issue.
Was this review help?
2
0
Share
Expand All
More Forum Discussions

How Long Does It Take to Get the Car Back After a Recall?

Automobile recall return time usually depends on the working hours required for the recall repair project. Here are some relevant extended information: 1. Vehicle recall: refers to a measure where car manufacturers collect vehicles with safety or technical defects and repair these defects. Although modern cars have a high degree of electrification and lower failure rates than before, because modern cars have more functions, the probability of problems has also increased significantly. Therefore, car recalls exist across all brands. 2. Compensation: After a vehicle recall, there is an impact on the owner's use and the brand's reputation. In order to salvage the brand's reputation, 4S shops usually provide certain compensations after a car recall, but these compensations are usually just 4S shop labor discount coupons, car wash and beauty coupons, etc.
7
4
Share

What to Do If Your Driver's License Has Been Overdue for Review for More Than One Year?

You need to pass the subject one exam to restore your original driving qualification, and you cannot drive a motor vehicle before restoration. Here are the relevant introductions about overdue review: 1. Notes: The applicant should take the road traffic safety laws, regulations, and related knowledge exam. Four photos of the motor vehicle driver. The original copy of the "Motor Vehicle Driver Physical Condition Certificate" issued by a medical institution. 2. Application materials: The applicant should take the road traffic safety laws, regulations, and related knowledge exam, commonly known as subject one, and pass the exam within two years after the cancellation of the motor vehicle driver's license.
13
5
Share

Why Does a Car Compressor Fail?

Introduction to the main causes of compressor damage: 1. The air conditioning system is not clean, and granular impurities are sucked into the compressor; 2. Excessive refrigerant or lubricating oil in the system causes "liquid hammer" damage to the compressor; 3. The compressor operates under long-term high temperature and high pressure harsh conditions; 4. Severe oil shortage in the compressor leads to excessive wear; 5. The electromagnetic clutch of the compressor slips, causing excessive friction temperature; 6. The power configuration of the compressor is too small. The following are the measures to avoid air conditioning compressor failures: 1. Avoid using the air conditioning system for a long time when the car is idling; 2. Ensure that the refrigerant is not overfilled during car air conditioning maintenance; 3. Do not continue to use the air conditioning system after any abnormality is detected.
9
5
Share

What are the symptoms of water ingress in the Magotan transmission?

The symptoms of water ingress in the Magotan transmission include experiencing slight jerking sensations during gear shifts while driving, which gradually intensify over time. Upon opening the coolant reservoir, oil stains may be observed inside. When draining the transmission fluid, it may appear entirely milky white. Below is an analysis of the causes of water ingress in the Magotan transmission: 1. Internal corrosion and leakage of the transmission cooler: Transmission fluid enters the cooling system and mixes with the coolant, causing the coolant to contaminate the transmission fluid and turn it milky white. The deteriorated transmission fluid leads to issues such as jerking and slipping during gear shifts. 2. Forced driving through water during the rainy season: Also known as wading, when the water depth reaches two-thirds of the wheel height, water can easily enter the transmission.
5
5
Share

What are the yellow dots on the car?

The yellow dots on the car are caused by metal dust adhering to the body and rusting over time. Methods to remove and prevent yellow dots: For small localized areas, use a damp towel to scrub firmly; if the damp towel doesn't work, purchase a cleaning wax, apply it to the towel, and gently wipe to remove the dots. When yellow dots appear in large areas, visit a car detailing shop for polishing and waxing to eliminate them. Regularly washing the car to remove dust, iron particles, and other debris from the paint surface can help protect the paint from corrosion to some extent. Reduce exposure to direct sunlight by parking indoors; if parking outdoors is unavoidable, install a car cover or canopy to shield the vehicle.
10
3
Share

What gear should an automatic transmission car be in when it enters water?

For an automatic transmission car entering shallow water, you can keep it in D gear; for deep water, shift to L gear. Below is a detailed introduction to the car gears: 1. R gear (Reverse gear): When this gear is engaged, the hydraulic system connects the reverse oil circuit, causing the drive wheels to rotate in reverse for backward movement. Do not forcibly shift to "R" gear when the vehicle is not completely stopped, as it may damage the transmission. 2. N gear (Neutral gear): When in neutral, the planetary gear system idles without power output. 3. D gear (Drive gear): When the gear shift lever is in this position, the hydraulic control system automatically connects the corresponding forward gear oil circuit based on throttle opening and vehicle speed signals, enabling automatic shifting with speed changes for automatic transmission functionality. 4. P gear (Parking gear): Uses a mechanical device to lock the rotating parts of the car's tires, preventing the vehicle from moving. 5. L gear (Low gear or Digital limit gear): The transmission can only switch between limited gears. "1" or "L" is the lowest gear of the transmission, typically used only when extremely strong power is required, such as climbing steep slopes or towing heavy vehicles.
10
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.