What does it mean that the IP address on the Samsung S4 mobile phone is not applicable?

Follow the steps below to troubleshoot and handle the problem:

2. Check whether the Wi-Fi password entered is correct.

3. Check whether the connection of other devices under the same wireless network is normal, and whether the wireless network has set connection restrictions.

4. Due to device compatibility problems, some wireless networks with Chinese names or special symbols may not be able to connect, it is recommended to change the wireless network name to English.

5. Please check whether the router connection is normal (unable to connect the cat), turn off the phone and the router and restart before trying to connect.

6. If none of the above operations are effective, it is recommended to back up important data (contacts, text messages, **, etc.) and try to restore factory settings.

If the problem persists, please bring the purchase invoice, warranty card and machine to the service center for inspection.

Solution: 1. Open the security center of your phone, click to clear your phone's cache, then turn it off and restart;

2. Turn off the phone, then press and hold the power button and the volume up button at the same time, let go after vibrating, and then select Clear All Data;

4. It is recommended to go to the local authorized service experience center and ask the engineer to test it.

According to your description, please try it as follows:

1.Reset the router and enable DHCP again.

2.Try to set a static IP address of the mobile phone to the same network segment.

We recommend that you do the following:

1. Turn your mobile phone and wireless devices on and off again.

2. It is recommended to forget the network to reconnect, operation: Settings - WLAN settings - click and hold the name of the network that needs to be deleted - do not let go - forget to delete the network.

3. Try to replace the static IP address.

4. Whether it is too far away from the wireless router and affects the receiving signal.

5. If conditions permit, whether this phenomenon occurs when changing other routers or wireless connection attempts.

6. Test whether there is any improvement after updating the system version.

7. Back up your phone data (**book, SMS, multi** files, etc.), and restore factory settings.

If the problem persists, it is recommended to take your phone to the nearest Samsung service center for testing.

8. Turn off the phone, then press and hold the power button and the volume up button at the same time, let go after vibrating, and then select Erase All Data.

Hello: According to your description, your S4 series mobile phone cannot be connected to wireless and Bluetooth, in which case system or hardware failure may be caused. It is recommended that you:

Back up your phone's data (**book, SMS, multi** files, etc.), and restore factory settings (go to phone settings - reset - factory reset).

If the problem persists, in order to understand and solve the problem of your mobile phone, it is recommended that you send your mobile phone to the nearest Samsung service center for testing, and the service center will determine the specific problem and accessories of your mobile phone according to the test results.