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6-6
VRC 6940 Product Reference Guide
Cold Boot
A cold boot fully resets the system and clears memory, including the RAM disk. It resets the
software and allows you to restart applications. Any unsaved RAM data will be lost.
Programs and data that have been stored in memory or on the RAM Disk are deleted. Non-
Volatile Memory (NVM) is not affected. To perform a cold boot:
1. Press the ON/OFF key to suspend the terminal.
2. Press and hold the ENTER, F4 and F1 keys.
3. Press and release the ON/OFF key.
4. Release the ENTER, F4 and F1 keys.
The VRC 6940 displays a copyright message, amount of RAM, and amount of
expanded memory. Other messages are displayed as well, varying with the system
configuration.
As the terminal boots, watch for cold boot failure messages. You may need to
reinstall a device driver. See Cold Boot Failure Messages, below.
5. Follow the instructions in Chapter 4, Installing Software to reinstall software.
Caution
The cold boot procedure erases all data and programs residing on the RAM
Disk. All contents of the RAM disk are lost.
If you have had problems starting the terminal, and cold booting (clearing memory) allows
you to boot the terminal, then something in memory was causing the problem. Perform a
Memory Transfer (see page 6-8) so that a programmer can perform application-specific
troubleshooting. Then install the correct version of the software as described on page 4-2.
Cold Boot Failure Messages
During a cold boot, the system briefly displays a status line for each driver as it loads, in this
format:
0: Drivername #.##
The line shows a status value, usually 0, followed by the driver’s name and version number.
If the system halts at one of these lines and displays a status value other than 0, the displayed
device driver failed to load properly. If such a failure occurs, the driver may need to be
reinstalled. Contact Symbol Technical Support.