Instructions for upgrading a IBM PCMCIA 28.8 International Modem to 
33.6 on  IBM OS/2  or Windows 3.1 operating system.

o NOTE:  When upgraded  to 33.6 firmware the International modem 
    should be used with the 33.6 country selector software.

o Expand ( unzip) file OS2UG336    BE  SURE to type OS2UG336 -d     to expand
   the sub-directories.
 
o Upgrading is a three step operation:

  - Upgrading your modem with the 33.6Kbps firmware

  - removing the IBM PCMCIA 28.8 International Modem
    country selector from your system.

  - Installing the 33.6 country selector on your system.
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1) Upgrading your modem to 33.6 Kbps

o Insert modem in PCMCIA socket

o For OS/2 system, open system setup in the system folder.
   Double click on Plug-and-Play icon to find the com port your
   modem is assigned to, record the com port number.

o Go to DOS, change to the directory where you downloaded the upgrade.
 
o Execute "firmware" program, (type firmware and press enter).

o Follow instructions on screen. when requested, type in the 
   port number you recorded.

o Modem will be upgraded to 33.6Kbps and set to U.S.A. country.

o Later you can use the 33.6 country selector to set the modem
  to your country of choice.


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2) Removing the IBM 28.8 modem country selector from your system

o You can use the 28.8 Country selector diskette to uninstall
   the 28.8 country selector.  Or uninstall using standard OS/2 
   or Windows 3.1 procedures.

o Note: New 33.6 country selector will work correctly if you do not
   remove the 28.8 country selector.




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3) Installing the 33.6 country selector for  OS/2 

o Remove and Insert modem in PCMCIA socket

o Change to the directory you down loaded the upgrade.

o Type "install"   and press enter.

o Follow the instructions to install the country selector for OS/2

o You can verify the upgrade using a terminal program
  by typing ati3  enter   the modem will return  7852-P01 V4.0

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3b) Installing the 33.6 country selector for  Windows 3.1

o Remove and Insert modem in PCMCIA socket

o Change to the directory you down loaded the upgrade.

o Type "setup"   and press enter.

o Follow the instructions to install the country selector.

o You can verify the upgrade using a terminal program
  by typing ati3  enter   the modem will return  7852-P01 V4.0


OS/2 is a registered trademark of IBM
Windows 3.1 is a trademarks or registered trademark 
of Microsoft Corporation.
