Method 1: Check the hidden settings of iPhone. 1. In privacy settings, you can enable or disable location services. If the location service is turned off, the iPhone cannot be located. 2. First find the "Settings" icon on the phone, and click Open. 3. Find "Privacy" on the settings page and click Enter. 4. In the privacy settings, check whether the location service is turned on. Click the location service, and you can also see all the enabled location applications in it. 5. If an application on the iPhone can't use the location function, you can check whether the location function of the application is not turned on in privacy.

Method 2: Restore the location and privacy settings of iPhone. 1. First, find the "Settings" icon on your phone and click Open. 2. In the settings, find "General" and click Enter. 3. Then slide your finger up and find "Restore". 4. Next, click Restore Location and Privacy. 5. The system will ask you to confirm whether you really want to restore, and click "Restore Settings". 6. After waiting for the system to restore its function, try to use the location service of iPhone to locate.

Method 3: Reinstall the application that cannot use the location. 1. If you try the above two methods, some third-party software still can't use the location service normally, you can try to delete the application and then download and install it again. 2. If it doesn't work in the end, please try to turn off the phone and restart it.