4. Perform the kbt firmware upgrade
The steps to upgrade the kbt firmware are identical to those of the abt firmware, however they
are rarely necessary as kbt updates are few and far between. To check whether the modem
requires a kbt upgrade, navigate to
DIAG (Modem Diagnostic)
, and look under modem
version for the portion highlighted below.
Figure 31
If the version of the kbt file you downloaded is identical to the version displayed in the modem
information box, then the kbt upgrade is not necessary. However, if the version downloaded is
more
recent (i.e., it has a higher version number) than the version displayed, then the kbt
firmware must be upgraded.
The steps to upgrade the kbt are identical to those of the abt file. Click the magnifying glass
icon and locate the kbt_version.upd file from the package that you extracted at step 1, and
then click Upgrade.
Your modem should now be at the latest firmware version. Confirm the change as shown in
step 1.