…
install the connection cable drivers on your PC
before your PC can detect your phone. For information
on this, please see the CD-ROM that came with your
cable.
...
connect your Nokia 7250i to your PC during the installation,
so make sure you have your phone and cable handy
during the installation process.
You
can either install the Nokia 7250i as a modem during PC
Suite installation or separately after installing PC Suite.
The modem driver for the Nokia 7250i is installed automatically
during PC Suite installation.
During installation, you must select whether you want
to install the modem as a cable connection, an infrared
connection or both. If you want to use a cable connection,
you must then connect your phone to your PC using the
connectivity cable, DKU-5, and allow your PC to detect
the port where the phone is connected.
The Nokia Modem Options are installed automatically during
PC Suite installation unless you unselect the Nokia Modem
Options when you select which applications you want to
install with the PC Suite.
If you want to install the Nokia Modem Options after you
have installed the PC Suite, double click the PC Suite
file marked with .exe and click Modify on the Welcome
screen. On the Select Applications screen, make sure that
the Nokia Modem Options box is checked. You can also modify
the installation by first going to Control panel
> Add/remove programs > Nokia PC Suite 5.1
and then clicking the Add/remove button.
Warning: Do not uncheck the boxes that are for
the applications you have already installed. If you uncheck
the boxes while modifying the installation, all applications
with an unchecked box will be uninstalled.
Note: If you are using Windows XP, you must
update the IR driver manually. (This applies only to Windows
XP IR drivers - other drivers can be installed automatically
on Windows XP, too.) To manually install the driver, follow
the instructions below.
Manually downloading and installing
Nokia 7250i infrared modem drivers
There are separate files for each connection method. Note:
If you do not want to use AT commands, you must have Nokia
Modem Options installed before you can use your phone
as a modem.
To install the modem inf files:
Connect your phone to your PC. Your PC should recognize
the connection and install your phone as a standard
modem.
Go to Device Manager ( Control Panel
> System > Hardware tab).
In the list under modems, you should see the Standard
modem over…. Select this, right click with your
mouse and select Properties.
Go to the Driver tab of the Properties
dialog and select Update driver.
A hardware wizard opens. Click Next > and
then select Search for a suitable driver.
Select Specify location and then click the
Browse… button to search for the location where
you stored the inf file.
Click OK and then Next >. Click Yes
or OK on the digital signature window and then
select Finish. Your driver is now updated and
Device Manager should show Nokia 7250i in the
list under Modem.
Get
the latest version of Nokia Modem
software from the Nokia
web site >>.
You
may need to... 
