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An unresponsive iPhone, that is, won't turn on or off, has a black screen, can't be used to make calls nor recognized in iTunes, becomes an iPhone brick. A bricked iPhone is thus referred due to being unusable, hence making it as good as paperweight. This case usually happens by accident, interfered or failed software update, or by jailbreaking or attempting to unlock carrier. Users opt to unlock iPhone in order to shift from current carrier to another without spending a substantial amount, or to be able to install third party iPhone data recovery software and enhance the device. However beneficial this may seem, doing this will make the device vulnerable to bricking when connected to iTunes for updates.

A bricked iPhone may be distressing, but a trip to an authorized Apple repair shop can be put on hold until after certain steps are followed and the problem remains unresolved. The foremost step is to take deep breaths to calm the senses. After this, it won't hurt to try some basic steps like restarting or resetting the bricked device.

Restart iPhone.
1. Press and hold the sleep/wake button (power button) on the top right part of the device until it shows the red slider
2. Slide the red slider to turn the device off.
3. Once the device is off, next is to press and hold the sleep/wake button again until Apple logo appears.

If device remains unresponsive, a reset can be done next.

Reset iPhone.
1. Press and hold the sleep/wake button and home button (located at the center below the device screen) at the same time for around 10 seconds until Apple logo appears.

For assurance, device can be restored to default factory settings wirelessly or through iTunes.