During the writing of this article, for instance, I found that a few times the screen lock would enable on my device, but the touchscreen would not work properly, so I would not be able to unlock it.

例如，在撰写本文的过程中，我发现有几次我的设备会启用屏幕锁，但是触摸屏不会正常工作，所以我就不能解锁。

youdao

So when Apple updated the iOS software that runs the device and turned the screen lock switch into a mute switch last year a lot of people complained.

FORBES: Compulsive Readers, It's Safe To Update Your iPad Now

The chromed plastic volume rocker, power button and screen orientation lock switch nestled in the plastic radio reception strip at the top of the device are decidedly less luxurious, however -- the travel of each was shallow, and the finish on the plastic appeared a bit cheap to our eyes.

ENGADGET: ZTE shows off new V98 Windows 8 slate, we go hands-on

If successful, pressing the power button again will bring up the home screen straight away, and what's more, the lock screen won't return until the handset is restarted.

ENGADGET