A reset of a BlackBerry smartphone is a troubleshooting method that completely turns off and restarts the BlackBerry smartphone’s operating system software and applications. It is a useful first step if a BlackBerry smartphone is experiencing hardware, software, or wireless network problems.
Note: A reset of a BlackBerry smartphone does not delete any settings or data.
There are two options for performing a reset: a hard reset and a soft reset.
A hard reset involves physically removing the battery from the BlackBerry smartphone and then reinserting it. To perform a hard reset, complete the following steps:
- Remove the battery cover from the back of the BlackBerry smartphone.
- Remove the battery, and then reinsert it after a few seconds.
- Replace the battery cover.
A soft reset is a three-key combination that resets the BlackBerry smartphone without removing the battery. It is only available on BlackBerry smartphone models with a QWERTY keyboard. Do not attempt to perform a soft reset on BlackBerry smartphones that are equipped with SureType® technology or the SurePress™ touch screen, such as the BlackBerry® Pearl™ Series, BlackBerry® Pearl™ Flip Series, and BlackBerry® Storm™ smartphone.
To perform a soft reset, complete the following steps:
- Press and hold the Alt key on the BlackBerry smartphone.
- While holding down the Alt key, press and hold the Right Shift key.
- With both of those buttons still pressed, press the Backspace/Delete key. The display on the BlackBerry smartphone turns off to indicate that the reset has started, and the keys can now be released.
Note: Some BlackBerry smartphones do not display the Alt, Right Shift, and Backspace/Delete keys in the same manner. However, the location of the keys does not change. Refer to the following graphic for key position:
- BlackBerry® smartphones
It is normal behavior for a BlackBerry smartphone to take several minutes to completely start up following a reset.
Some wireless service providers and third-party device manufacturers have processes called master reset, factory reset, or master clear, which erases all user data and settings for non-BlackBerry carrier devices, restoring them to a “factory” state. The wipe handheld command performs this same function on a BlackBerry smartphone. For further information on the wipe handheld command, see KB14058.
To reset a legacy BlackBerry device (Research In Motion® (RIM®) 850, 857, 950, 957 devices), insert the end of a paper clip into the small hole on the back of the device.
From : http://www.blackberry.com