Hello, my mobile phone is 9 100, and suddenly the touch screen doesn't move. Writing short messages does not pop up the writing box, which is very power-consuming. After sale, it is said that it is on

Hello, my mobile phone is 9 100, and suddenly the touch screen doesn't move. Writing short messages does not pop up the writing box, which is very power-consuming. After sale, it is said that it is only an upgrade. Dear Samsung users, hello:

Judging from your description, this situation may be caused by system or hardware failure. It is recommended that you:

1. Restart the machine.

2. If the mobile phone case has a protective cover, take it off and test it.

3. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore factory settings (enter phone settings-reset/privacy/private-restore factory settings).

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

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!