Compatibility Issues When Updating - Symbol Series 3800 Reference Manual

Series 3800 Product Reference Guide

Compatibility Issues When Updating

While the order in which software packages are loaded is not important, we recommend
loading the system files, LWP.HEX, first, before loading any application files. You don't have
to reload existing applications that conformed to previous standards for flash disk
applications. Loading just the system files allows the old applications to run with updated
system software.
Note: Some configuration changes may be required.
Complications: Naming Applications
In versions of LWP.HEX for flash disk terminals prior to version 3.03, parameters were
defined in NET.CFG to specify the applications that would run on the terminal. If only one
application was used and no applications were defined in NET.CFG, the system gave the
application the default name, APP. This can cause problems if you plan to add more
applications to terminals using version 3.03 HEX files.
With LWP.HEX 3.03, the application entries in NET.CFG are not longer required. The
system now decides which applications are installed on the terminal by scanning the flash
disk's directories and files. If you had an original application with the default name APP, it
will show up in the application selection menu as APP. If you updated that old application
(e.g., created a version 3.03 HEX file of the application), the application selection menu will
contain both versions, one called APP and one by the "real" name (e.g., STEP).
Because of this potential problem, if ALL the software on the flash disk is being replaced in
the update, we recommend reformatting the flash disk using FLSHFMT. Reformatting deletes
ALL the files on the flash disk and eliminates this duplication.
Note: DO NOT run the FLSHFMT utility unless all the HEX files,
including LWP.HEX, are available to recreate the flash disk file
system.
Complications: System Parameters
In flash disk terminals with a LWP.HEX version prior to 3.03, some system parameters were
changeable only by editing NET.CFG (e.g., power management mode, boot mode, and
diversity). These parameters were not saved in the radio flash.
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