How do I replace a cmos battery in a Toshiba Portege M200?

SOURCE: Can I use my ATT air card with my Toshiba Portege M200 tablet pc?

I have owned several tablet PC's and all of them (including my most recent Toshiba) worked just fine with the existing wi-fi card. Please be clear, however, that AT&T wireless air card service and "wi-fi" are two different things.
Your AT&T card pulls internet service over cellular connections, and your wi-fi card connects to a local hot spot (if available) or your own wireless internet access.
First of all, be sure that you have an active AT&T laptop connect account and then follow these steps:
Power on your laptop. Insert the AT&T wireless air card into an available USB slot. Wait a few moments (this may take several minutes some times), and the card will typically start attempting to install itself and its software. If you have any trouble with this, ATT provides free installation tech-support at the following site:
http://www.wireless.att.com/businesscenter/solutions/wireless-laptop/modem-cards.jsp

You may also have them contact you at your convenience by going to this page and filling out the form:
https://www.wireless.att.com/businesscenter/b2b/contact_us.jsp?wtLinkName=ContactATT&wtLinkLoc=RN

Hope this helps!
Jeff

SOURCE: I have an issue with my Toshiba Portege m200..

they are shortcuts you can make to programs and files


this is coming from my own experiance

and today my toshiba portege m200 fell and a peice came off oh well

SOURCE: M200 Tablet - cannot write on tablet

i lost my software that came with the system and want y
to install the operating system.
purchasing the software and install it. i downloaded drivers and yet the pen did't work.

SOURCE: clear cmos toshiba m200

In case nothing worked to reset BIOS password (taking battery out, reseting jumper J1) you can use thrid party software from Hiren's Boot CD to reset the password. You've got Kill CMOS on there, for example which wipes out CMOS. Here's the download link to the entire CD: http://www.hirensbootcd.org/download/Hirens.BootCD.12.0.zip