Hi
twylazhangzh,
Sound like your
Ti 84 Plus is really over loaded and, can't function properly. You can fix that by installing the newest
Ti 84 Plus 2.55v. MP OS. operating system.
If you have a friend that has a
Ti 84 Plus or, Ti 84 Plus Silver Edition you can connect the two calculators together through the IO link ports and, they can send you a copy of their OS while you
receive it on your
Ti 84 Plus. Hopefully your friend will have
Ti84 Plus 2.55v. MP OS on their calculator or, it might not work.
If you can't find a calculator to connect to you can connect your
Ti 84 Plus to a computer that has
Ti Connect software on it. If you need to connect your Ti 84 Plus to a computer just keep following my instructions below.
First, you need to download and, install Ti Connect to your computer. If you don't need any help installing Ti Connect
goto Procedure 1.
If your computer's OS is XP or Mac and, you need instructions to download and, install Ti Connect click, "
Install Ti Connect on my XP or Mac OS". Just follow Procedure 1 at that posting and, come back to this posting to finish downloading and, installing
Ti84 Plus 2.55v. MP OS to your calculator.
If your computer's OS is Windows 7 and, you need instructions to download and, install Ti Connect click, "
Install Ti Connect on my Windows 7 OS". Just follow Procedure 3 at that posting and, come back to this posting to finish downloading and, installing
Ti84 Plus 2.55v. MP OS to your calculator.
Procedure 1 to installing
Ti84 Plus 2.55v. MP OS
1). You can also get the
latest copy of Ti84 Plus 2.55v. MP OS and, guidebook by going to the Texas Instruments web site. You can get to that site instantly by clicking,
"Ti 84 Plus 2.55v. MP OS!" Once your at the Ti site click the Download Item,
"Ti84 Plus family operating system". Next you can
login or, click
"continue as guest". I'd would click the
"continue as guest". Once you have click,
"continue as guest" the
Ti84 Plus family operating system will download to you.
Next, click "
SAVE" and then a window to a folder will pop up. It is probably a window to a folder that you download too. If so, you may want to change it and, save to this folder,
"My Documents \ My TI Data \ Downloads". You can also go back and, download the Ti 84 Plus
guidebook too, if needed.
Link your computer and, Ti 84 Plus calculator with the USB cable or, Direct Black Link cable that came with the Ti 84 Plus calculator. Next, drag the Ti 84 Plus 2.55v MP OS that you saved earlier in "My Documents \ My TI Data \ Downloads" out of that folder and, drop it in the "Ti Connect" icon on the desktop. Click, "Continue" when the "Erase Warning" pops up and, the new Ti 84 Plus 2.55v MP OS will begin to install.
Next, the Ti Device window should pop up and, highlight the port when found that your Ti 84 Plus is using, USB1 cable or, Direct Black COM1.
When the Ti Device Explorer finds and, highlights your calculator's information click, "Select." Then click, "Yes" when the next window shows up with your calculator's information and, the OS will continue to download. Upon completion the newest Ti 84 Plus 2.55v. MP OS will be installed.
If you run into any trouble with software or, drivers just comment to what failed at this posting and, I'll be glad to help you.
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