TI-84 Plus calculator goes on, but says "RAM cleared". Then, the cursor does not flash, and I have to push the buttons for a long time to get anything on the screen. Also, if I push the same button more than once, the calculator does not recognise the second, third etc entry. How to fix this? I've tried to clear all the memory, also manually.

The command line is full. Use the left arrow key to clear the command line. Then erase all previous entries, or reset the RAM

Is the cursor checkered? If so, there is no more space on the entry line. Use the DEL key to shorten it or clear it. Clear the RAM also.

You need to re-install or, update the Ti 84 Plus OS. Since you just bought the calculator it is unusual that it is already to that point of clearing the RAM. You can connect a computer and your Ti 84 calculator together once you downloaded and, installed Ti Connect software on the computer. That way you can use the Ti OS Downloader that comes with Ti Connect software to install the newest Ti 84 Plus OS. Or, 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.

Get this problem fixed as quick as you can. You do not want your OS to fail any more than what it already has. If you can not find another calculator to connect too, then you can connect through your computer. You may have a long road ahead of you getting the Ti Connect software and, drivers working right. Just remember to come back to your posting here and, post a comment of what ever is failing. This will notify me right away and, I'll walk you though it if necessary.

Hello.

Means the memory is full and your TI needs to be reset:

There should be a Reset button (press) or a pinhole (push an opened paperclip in the hole and release).

Hope this helps.

Hi,

First, turn it on. Once the calculator is on, press the "2ND" key (I believe it is a blue key in the ti-84 plus silver edition). Now press the plus key (+). A little above that key, you should see the word "mem." When you see the screen titled MEMORY, move the cursor all the way down to the option that says "Reset." From here, you can choose to reset either the RAM memory, or the factory settings. The factory settings are the "Defaults" option. I hope this helps.

Thanks for using FIXYA!!!!!!!!!!!!!!.

Hello,
Please, read the following, even if you already know some of its contents.

1. Once you enter an equation, the corresponding equal sign is highlighted by default.
   
2. Before you draw the 2 graphs, move the cursor to Y3 or Y4 and verify that the = signs for Y1 and Y2 remain highlighted.
   
3. If one is not highlighted, move the cursor on it and press ENTER.
4. If you still have problem, press [2nd][STATPLOTS][4: PlotsOff] [ENTER].
5. Command PlotsOff echoes on main screen.
   
6. Press [ENTER], screen displays Done.
7. Restart the graphing procedure.
   
8. If all else fails, just reset the RAM by pressing [2nd][MEM][7:Reset][1:All RAM][2:Reset], press [CLEAR] to clear the message.
   

You should make it a habit to clear the RAM every time you start a new type of problem.

Hope it helps.

Hello,
The most likely reason is that the backup battery is drained. Change the backup battery. When you get the Ram Cleared message, just press [CLEAR] to erase the message and start using the calculator.
Hope it helps.

I can turn the calculator on but can't use any other button. The cursor just keeps flashing.

Thats because the OS is corrupt. Follow the manual and reload the OS, try the 2.43 OS

This is kinda a weird situation. Because it's usually the other way around. Your ram will clear if your calculator is frozen. So take out all 5 batteries from the back. Even the back up battery. Then reset it again. 2nd then + then 7 then 1 Then 2. Good luck.