I can give you some professional advice on 3C electronic products.First of all, if you encounter difficulties in use, you can try to restart the device or contact after-sales service for help.Secondly, when purchasing electronic products, it is recommended to choose well-known brands and formal channels to ensure the reliability of product quality and after-sales service.In addition, in the process of use, attention should be paid to protecting the equipment from damage, and regular maintenance and updating should be carried out to ensure the normal operation of the equipment.Finally, if you encounter some problems that are difficult to solve, you can consider seeking the help of professionals or institutions, such as the maintenance center, customer service hotline, etc.I hope the above suggestions will help you!
It can be replaced.But you can't change it yourself. You can find it anywhere you install it, and he will find the manufacturer to replace it.If your recorder supports WiFi, you can turn on your mobile hotspot and share it with the recorder, provided that your mobile phone has traffic.Jack Dou's smart car phone network has great advantages: first, it is cheap; second, because mobile navigation and other functions are more mature, the traffic price of the car navigation flow card can not come down.
Yes, just put a SIM card at random. Generally, the card provided by a third party will be cheaper, usually in about 20 years. If you have a cheaper card, you can also use it. Thank you
