The time in the upper right corner of Samsung mobile phone doesn't go, the alarm clock doesn't go off, and you can't send and receive text messages.

According to your description, I suggest you:

1. Click the alarm clock-check whether the green light on the right side of the time is on.

2. Check the third-party software recently downloaded by the mobile phone. It may be that the software is incompatible with the mobile phone. I suggest you try uninstalling it.

3. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore the factory settings (Settings-Reset-Restore Factory Settings). If the problem still exists, I suggest you take the three-guarantee certificate of your mobile phone and send it to the nearest Samsung service center for testing. For more information about the service center, please visit:

. Samsung . com/support/service locations . ASP

It is recommended that you apply for "booking to the store" in Samsung official website and enjoy priority maintenance service:/pre-order.

After the appointment is successful, please bring your machine, invoice and warranty card to the service center you reserved on time.

If you need help, please visit support.samsung.com.cn, and official website will provide you with multi-channel service support!