My calculator is working well but only one button isn't working ; Memory I press 2nd , then + (MEM). But it doesn't work. + button does work and 2nd key works with other button.

Instructions
1
Enter the memory options by selecting "Mem." Press the "2nd" key followed by the "+" key. Select "Reset" from the memory choices. Use the arrow key to select and delete all memory.


2
After choosing to delete all memory, select "Reset." After this reset, your screen should show "Mem Cleared." Once you have reached this screen, press "Enter." If you installed programs or applications, you may need to remove them manually. Once again, enter the "Mem" command.
3
Press "2" to select Memory Management. If you are deleting programs, input that option from the subsequent menu choices. If you need to remove applications, input that choice and press "Enter. Select the application or program from the list displayed. Press "Del" to request the deletion. Choose "Yes" to confirm your choice.


4
Repeat this process to delete remaining programs manually. After completing this, exit the memory menu and press the "Apps" button. Make sure no applications remain. Additionally, press the "Prgm" button, and check that all programs have been removed

Follow this steps to resolve this problem:

1. Press ON to turn calcilator on

2. Press 2nd and then press + key button. TI- 81 displays RESET menu

3. Press 2 to select the RESET, the second item in the RESET menu. The display shows the message Mem cleared. Press CLEAR to clear the screen

If you cannot see anything on the screen, you may need to adjust the graphing TI- 81 calculator contrast:

-To darken the screen, press and release 2nd key, and then press and hold up-arrow key until the display is sufficiently dark

- To lighten the screen, press and release 2nd key, and then press and hold down-arrow key until the display is sufficiently light

Use the memory manager. Press 2ND [MEM] to bring up the memory manager, then 2 7 to bring up the list of programs in memory. Use the arrow keys to move to the one you want to delete, press DEL, then answer Yes to the prompt. Press 2ND [QUIT] to exit the memory manager.

To delete stuff from memory, press 2ND [MEM] 2 to display the Memory Management/Delete menu. Select the type of data you want to delete, or 1 for a list of variables of all types. Navigate through the list using up- and down-arrow and press DEL to delete the item from memory. Press 2ND [QUIT] to exit.

Hi,
See if the cursor is checkered. If so, the calculator is out of memory.
You may have very little memory available and then wanted to create a table with a very small DeltaTbl (the table step). If the step is small, and the domain is large, very many points will have to be generated and that may make the calculator unable to comply for lack of RAM.

I suggest you free some Ram by clearing the lists, clearing the entries. To do so you press [2nd][MEM][3:Clear Entries] to clear entries, then press [2nd][MEM][4:ClrAllLists] to clear the lists.

Alternatively, you can just reset the Ram by pressing [2nd][MEM][7:Reset][1:All Ram][2:Reset][ENTER]. Then clear the Ram Cleared message and start again your table.

Hope it helps.
Thank you for using FixYa and for rating this solution.

Hello,
The games you installed (or at least one of them is still in memory. Clear the memory and archive the games you do not play, it will free memory.
Press [2nd][MEM] [2:Mem Mgmt/Del] [7:PGRM]. A list of programs is displayed. To archive a program highlight it and press [ENTER]. An asterisk appears to the left of the program name. To exit press [2nd][QUIT] or just [CLEAR] and you will return to Home screen.
Hope it helps.

Hello,
Press [EXIT] or [2nd][QUIT] to terminate the program that may be hung in memory. Press [2nd] MEM[F3][F1][F4].
You may have to reset contrast.
1.Press and release [2nd] key.
2. Press and hold [UpArrow] to darken or press and hold [DownArrow] to lighten it.

Hope it helps.

If you are willing to reset it, hold the "CLEAR" button while you take out the batteries and then let go of clear, then put the batteries back in, and if that don't work, reverse the last two steps, and if that don't work, I suggest that you get professional help

Hello,
Since the 2nd Button works press [2nd] [MEM] [7:reset] [F1][All ram] [ENTER]. That may help

Warning the following tip will erase apps and programs from calculator!
The following will run the self-test mode
Press mode then press alpha then press s then press enter
If you want to get out of the self test press the on button in case you want to attempt to save/transfer apps, programs, variables etc.
The calculator will start to test itself it'll countdown and display numbers on the screen. It can get better sometimes other times a replacement of both the cr1616/cr1620 lithium battery and the 4 AAAA batteries work. Also ensure that you've attempted to clear out all the memory and reset the calculator. To delete all variables, tables, graphs, etc: Press 2nd button then press MEM then press 2 then press 1.
To reset the calculator press 2nd button then press MEM then press 7 then press the left arrow then press 1 then press 2.