If your BlackBerry becomes sluggish, is low on memory or additional data is not being received, the best way to handle this is to reinsert the battery.

In principle, the restart by removing the battery on a BlackBerry is like rebooting your computer after a crash. This is not like the boot up by pressing the Power On / OFF button because this only places the BlackBerry in standby mode. Rebooting the BlackBerry frees memory and applications that run in the background.

When should we reinsert the battery?
Hardware issues:
BlackBerry screen freezes
Keyboard / Trackball / Trackpad does not work.
SIM card error

Software problems:
Java error code appears on the display module (for example: Uncaught exception).
Application are slow, not loading or lag.
Theme fails.
Bluetooth error, no connection.
The music application online (Slacker, Pandora) has a buffer overflow.
Social network apps (Twitter / Facebook) can not connect.
Memory leaks, loss of memory.
LED blinks continuously when no e-mail or text messages have arrived

How to restart the BlackBerry?
Hard reset – when you manually remove the battery from the BlackBerry device and reinsert after 30 seconds.  Start time will depend on the operating system and applications you have installed.

Soft reset – when you press the 3 key combination: Alt + Shift (right) + Del.

You can also reboot your BlackBerry device by third-party software available in the App World.