B
ASIC
F
UNCTIONS
C
HAPTER
2
ALH-900
X
U
SER
’
S
G
UIDE
DOC.
CONTROL
#8102114-000
REV
E
22
Do not unplug the reader or attempt to turn it off while the upgrade is taking place!
After the upgrade is complete, you will be prompted to perform a Hard Reset to reboot the system
(hold both the Power & “Fun” keys while depressing the recessed reset button with the stylus).
When the reader reboots, you can verify the new firmware load through the Firmware Update
control panel.
If the reader fails to reboot, it may be because the new firmware image requires the system to be
“cleaned” first. In fact, it is a good idea to clean the system after installing new firmware on the
handheld. You can either clean the system leaving the Flash partition alone, or clean everything
including reformatting the Flash partition. Some OS updates might require this.
In order to clean the system (and recover your reader if it isn’t booting up after the upgrade), you
will need to go to the Boot Menu.
Select the location of the files, and
check both the BOOT and OS
checkboxes. The new image versions
appear in the area just above. Press
UPGRADE START to continue.
After the upgrade is complete, you must
cold-reset the unit (press Power and the
recessed Reset button at the same
time).