13pm SMS has no sound.

There is something wrong with the mobile phone system, resulting in no sound when receiving short messages.

There is something wrong with the mobile phone system, resulting in no sound after receiving the text message. You can set-restore-restore all settings to solve. If necessary, consider upgrading the system to the latest version, or connecting the computer's iTunes software to automatically restore the system.

The A 15 bionic chip used in iPhone 13Pro is equipped with a brand-new 5-core processor, and the brand-new 6-core central processor has two brand-new high-performance cores and four energy-efficient cores, which is a very excellent processor.