![](http://pdfasset.owneriq.net/6/f6/6f625eb6-6344-4951-af4f-4acb9513ebb8/6f625eb6-6344-4951-af4f-4acb9513ebb8-bgee.png)
Upgrades 2300 Series Upgrade - 41
10 If the unit has an Apple
Express modem, install
the new software for the
modem, which is
included in the upgrade
kit.
Replacement Note:
After
reinstalling the CPU
stiffener, use the Duo
battery contact alignment
tool to check the alignment
of the battery contacts.