Some iPhone 18 Pro owners have noticed an unusual crackling sound coming from the speaker of the device, leading to complaints on the MacRumors forums and Reddit.
Users have called it a crackle, a faint tick or pop, or random clicking. Many say the problem is with the earpiece speaker, and both the iPhone 18 Pro and iPhone 18 Pro Max appear to be affected.
Some people hear the sound consistently, while others hear it during app use, scrolling websites, when receiving notifications, when the keyboard pops up, or when making a call using a cellular connection. On affected units, reports suggest toggling Airplane Mode on and off triggers the sound, as does adjusting screen brightness quickly.
Apple released iOS 27.0.1 yesterday to fix a bug that could cause iPhone 18 Pro models to restart when Face ID authentication fails. The release notes didn't mention a speaker fix, and early feedback says the update did not help.
There are reports from people who returned their iPhone 18 Pro models only to get a second iPhone with the same issue. It's not clear what's causing the problem, but if it is a bug, a future software update may address it.
