My mobile phone terminated unexpectedly during the download process, and then a triangle with an exclamation point kept appearing in the notification bar of my mobile phone. How to remove it?

According to your description:

This failure indicates that you:

1. Uninstall the recently installed third-party software. Turn the machine on and off and try again.

2. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ), restore the factory settings (enter phone settings-reset-restore factory settings) and try again.

3. If there are still problems through the above methods, please bring the purchase invoice, maintenance card and machine to Samsung Service Center, and the engineer will check and handle the machine. 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!