I want to download apps to calculator... for example... i want to download notefolio on my calculator ti-89 but when i used ti-connect to trasnfer notes to my calculator i couldnt find notes on my calculator... where can i find transferred notes on my calucaltor?

Try here:
https://epsstore.ti.com/OA_HTML/csksxvm.jsp?nSetNumber=12154

Transfer it to the calculator, if you have not done so already. If it has been installed, it should show on the AppsDesktop. To explore the desktop, use the arrow keys. You can also deactivate the AppsDesktop ON on the last page of the MODE, to have a list displayed when you press the Apps key. Once you find the NoteFolio app, select it and press ENTER. Here is how you proceed afterwards.

What do you see in your home screen? If you see a screen without tha apps icons that means you have disabled the display of icons and that your Home is the default APP that is displayed.
Enter the MODE screen, Press F3 to go the 3rd page or scroll down to the line APPS Desktop. Set it to ON. You will then see the APPS as icons.

try calling the company

http://education.ti.com/calculators/downloads/US/Software/Detail?id=260

Hi

its an hardware failure,
it could be that some liquid inside and it short the circuit
if you can open the back cover and look if there is some liquid or a battery leak inside

You can download the NoteFolio app from
http://education.ti.com/calculators/downloads/US/Software/Detail?id=268&ref=%2fcalculators%2fdownloads%2fUS%2fSoftware%2fSearch%2fResults%3fcp%3d2#

You need to install notefolio to your TI-89.

You can download the program from:
http://education.ti.com/educationportal/sites/US/productDetail/us_notefolio_89.html

After you download the program file, you can use TI-Connect to transfer the program file to your calculator (after you connect the calculator to the computer with the USB cable). To transfer the files, simply drag and drop the program file onto the TI-Connect icon on your computer.

To learn more about the Notefolio app, here is the guidebook:
http://education.ti.com/educationportal/downloadcenter/SoftwareDetail.do?website=US&appId=6204&tabId=2

Hi, 
Microsoft net framework 1.1 would be the latest one. Download the same from the link below :- 
http://www.microsoft.com/downloads/details.aspx?familyid=262D25E3-F589-4842-8157-034D1E7CF3A3&displaylang=en

Once you download the above, the issue would be fix. 
Thanks for usig Fixya. 
Do rate the solution as "Fixya" if 100% satisfied.

Hi,
Microsoft net framework 1.1 would be the latest one. Download the same from the link below :-
http://www.microsoft.com/downloads/details.aspx?familyid=262D25E3-F589-4842-8157-034D1E7CF3A3&displaylang=en

Once you download the above, the issue would be fix.
Thanks for usig Fixya.
Do rate the solution as "Fixya" if 100% satisfied.