Blackberry RIM 857 Wireless Handheld Installation & User Manual page 167

There is also a reset hole on the back of the handheld, located in the
information label. Normally, you will not need to use this method of
reset. However, if the handheld 'locks up' (no longer responds
when you press keys or use the trackwheel) you can use this
method to reset the handheld. One end of a paper clip can be
inserted into this hole to press the reset button, restarting and
restoring the handheld to normal operation.
Note You can also reset the handheld by simultaneously pressing
the
Messages and other information stored on the handheld will not be
lost. If you were in the process of composing a message, however,
the message will be lost.
If you reset your handheld, you will not lose the connection with
your PC. After you reset your handheld, synchronize with the
Desktop Manager to ensure that all information has been restored.
See the Desktop Manager online help for more information
Frequently asked questions — Resetting the handheld
+ +
ALT SHIFT BACKSPACE
keys.
Installation and User's Guide
167