After receiving update reminders, touch Settings > Updater to view the content of the updates and decide whether to perform the updates.
A system update will improve the performance of your phone, strengthen person privacy and data protection capability, and provide you with newer functions. Therefore, it is recommended that you update as soon as possible. If you choose to perform the update, the current system can still be used.
An online update will not clear the user data, however, in order to protect your data security, it is recommended that you perform a data backup before updating.