Is the bad cell phone signal a card problem or a cell phone problem?

1. The reason why mobile phone hardware affects mobile phone signal and base station.

In addition to environmental problems, the hardware of the mobile phone itself will also cause poor signal. As we all know, the poor signal of Apple's mobile phone is caused by hardware.

Also, the SIM card inside the mobile phone is an important carrier for our mobile phone signal reception, and if this card is frequently replaced after being used for a long time, it will definitely cause wear and tear on it, which may make the SIM card unrecognizable and unreadable, resulting in poor signal. In addition, there is a signal difference caused by the problem that the mobile phone itself receives the signal transmitted by the base station.

2, the base station reason

As we all know, the signal of the mobile phone receives the signal sent by the base station. If there is something wrong with the base station or for any reason, the transmitted signal is very weak, and the signal of the mobile phone will become very poor.

Moreover, the strength of the base station signal depends on which operator built it. The mobile signal will be stronger than the Unicom signal. Because the mobile signal covers a wide range and there are many signal receiving base stations, the mobile phone signal can receive a strong mobile phone signal within the corresponding base station range.