How to use used mobile phones for what?

Idle old mobile phones have many creative uses, which can make them play an entertainment role. Here are some ways to try:

1, hanging on the wall as a digital clock or calendar. Download a digital clock or calendar application, put it on your old phone and hang it on the wall. This will not only let you know the time and date, but also add a unique decoration to your home.

2. As a music player. Connect your old mobile phone to your sound system and use it as a music player. You can pair it with a music streaming service or use it as a player to store music.

3. As a game machine. Download your favorite games and install them on your old mobile phone. So you can play games in your spare time without worrying about the power and storage space of the main phone.

4. Education for children. Download some educational applications such as children's reading or math games. Leave your old mobile phone at home or in the car, and let your child study during a long trip or at home.

5, as a home security camera. Download a home security application and put your old mobile phone in your window or doorway to monitor home security. You can connect to the home network through your mobile phone and check the situation at home in real time.

In short, using the functions of the old mobile phone can provide you with many entertainment options. However, before using your old mobile phone, please make sure that you have taken the following steps to ensure its security and stability:

1, update the software. Update all applications and software on your old mobile phone to the latest version to ensure its security and stability.

2. Clean up the space. Delete all unnecessary files and applications to free up storage space. This can help you make better use of your old mobile phone.

3. Prevent malicious software. When downloading and installing a new application, please make sure to download it from a reliable source and pay attention to the permission requested by the application.

4. Protect personal information. When using the old mobile phone, please make sure that all personal information has been cleared, including contacts, documents, photos, etc.

5. Disable phone and SMS functions. In order to avoid receiving calls and text messages with unknown numbers, it is best to disable the phone and text message functions on the old mobile phone.

Finally, if you find that your old mobile phone can no longer be used or has any problems, please don't try to repair or reuse it. To avoid security and privacy issues, please make sure to handle your old mobile phone safely.