time:2025-07-12 16:01:15 Smart Hardware
Content 1:
1. Tell if it's a problem with your phone. Try to insert the SIM card into another mobile phone, if it can be used, it means that there is a problem with the contact between the mobile phone or the SIM card and the mobile phone.
2. Restart your phone and see if the problem is resolved.
3. Insert and unplug the SIM card repeatedly to see if the SIM card is not installed properly.
Content 2:
1. Settings - Application Manager - More in the top right corner - Apps that can appear at the top - Try to close the apps that you don't use for the time being.
2. If the developer options have been turned on on the phone, it is recommended to turn it off and try it: Settings - Developer Options - Slide to close.
3. If it doesn't work, please back up the data in your phone and try to restore the machine to factory settings.
Content 3:
1. First of all, when installing an external software, the Allow and Allow prompts will pop up, click Allow here.
2. Then it will show No risk found, click Continue Installation.
3. Start by opening Settings on your phone.
Content 4:
1. It may be that the mobile phone and the set-top box are not under the same wife.
2. Screen projection requires the same mobile phone and set-top box to cast the screen.
3. After connecting to the same wife, click "Cast Screen".
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