Intermec Janus 2050, User Manual

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JANUS 2050 Vehicle-Mount Computer User’s Manual (4MB) 39
nugget
A
8-24
To perform a cold boot
1. Turn off the JANUS 2050 by pressing the
q
button.
2. Press
n
-
2
-
b
at the same time.
3. Press
2
. This is a bootstrap request.
4. Turn the JANUS 2050 on by pressing the
q
button.
5. If the password is set, the JANUS 2050 displays the Password screen. Type
in the password, press
e
, and the Boot Loader menu is displayed.
6. Choose Reboot and press
e
. Reboot clears the internal RAM and all of its
contents.
If you do not want to reset the JANUS 2050, you can also select Resume
and press
e
. The JANUS 2050 will continue executing the program.
Forcing the JANUS 2050 to Turn Off
If the JANUS 2050 does not turn off when you press
q
, you can force it to turn
off by pressing
q
-
5
-
j
at the same time.
When you turn on the JANUS 2050 again, the Boot Loader menu is displayed.
From the menu, you can try dumping memory or you can do a cold boot. A
cold boot clears the internal RAM and all of its contents.
Saving Data and Loading Flash Memory
If the JANUS 2050 cannot resume operation, you can save the JANUS 2050’s
data and then use a program on the Boot Utilities companion disk to reload the
system, application, and user flash memory. You can also use this same
program on an upgrade disk to upgrade the JANUS 2050’s software.
Saving JANUS 2050 Data
When the JANUS 2050 cannot resume, the power management software
displays an error message. You can turn the JANUS 2050 off without losing
data provided there is sufficient battery power. The next time the JANUS 2050
is turned on, it repeats the error sequence and returns to the Boot Loader
menu. If you reboot the JANUS 2050, the data is lost.
You can save the data from the JANUS 2050’s 640K memory by dumping the
data to the host computer. The host computer must be running a
communication program that is capable of receiving and storing the data from
the JANUS 2050’s memory.