Are you troubled by the problem of no service for Huawei mobile phone cards? PHP editor Strawberry brings you a comprehensive solution guide to analyze the causes and solutions of the failure step by step. The following content will provide you with detailed step-by-step instructions to help you quickly restore the service functions of your phone and no longer worry about no service.
1. The mobile phone uses a metal protective case, magnetic protective case, magnetic stand or magnetic suction cup. Metal and magnetic materials can easily interfere with the signal, causing the mobile phone signal to deteriorate. You can remove the mobile phone case and try it. try.
2. In some relatively closed indoor environments, such as houses with densely spaced buildings, the mobile phone signal may be blocked, resulting in poor signal quality. You can go outdoors to test whether the mobile phone signal can return to normal. The coverage of the operator's network varies according to the region. Urban areas basically meet the coverage, but some more remote areas may have insufficient coverage, which will lead to poor mobile phone signal. You can determine whether it is caused by network coverage problems by checking whether the mobile phone signal is poor only when you are in the same area or whether the mobile phone signal conditions of nearby friends use the same operator's phone card.
3. Incorrect APN settings will affect the normal use of the network. Operation steps: Open settings, enter APN in the search bar at the top, click the access point name (APN) to enter the mobile data setting interface; click the access point name (APN) to enter the APN setting interface; open the three dots in the upper right corner, Click Reset to default settings.
4. Take out the phone card and check whether the metal surface is dirty or oxidized. It is recommended to keep the phone card clean before trying. Or change to another SIM card from the same operator, or change the SIM card to another phone that supports this card and check again. If the signal icons all show No Signal , it is recommended to go to the operator's business office to check and replace the SIM card with a new one.
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