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How to remove memory from scienfic calculator

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To clear a memory location, just store 0 in it.
0 [STO] M clears memory M
0 [STO] A clears memory A
0 [STO] B clears memory B
etc.

Posted on Oct 15, 2010

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Posted on Jan 02, 2017

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Somehow I have pushed a button I wasn't supposed to. When I turn the calculator on there is an 'M' on the screen. I cannot remove it. This makes my totals show up with out the cents column.


There is a couple things we can try, press the clear button on the calculator, failing that! remove the batteries for at least 60 seconds to see if it will clear "M stands for memory" the only other thing you can do is locate the M key, press once engages the memory, press again turns it off on some models.

Mar 13, 2011 | Canon P1-DHV Calculator

1 Answer

I'm trying to clear the memory on my Ti-84 Plus, but every time I hit 2nd then + to access the memory, nothing happens. It doesn't take me to the screen or anything. It justs stays on the blank screen.


  1. Power of device.
  2. Remove primary battery cover.
  3. Completely remove all 4 AA batteries.
  4. Unscrew and remove back up battery cover.
  5. Remove all back up batteries.
  6. Wait 60 seconds.
  7. Reinsert back up batteries and cover.
  8. Reinsert all 4 AA batteries and cover.
  9. Power on device.
  10. Memory cleared!

Mar 13, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

Change batteries


1. Remove slide cover. Place calculator face down.
2. Using a small Phillips screwdriver, remove screws
from back case.
3. Remove back case.
4. Remove discharged batteries.
Caution: Avoid contact with other calculator
components while changing batteries.
5. Install new batteries positive side up, as shown on
diagram inside case.
6. Replace back case, and then replace screws.
7. Press OFF ON ON.
Caution: Dispose of old batteries properly. Do not
incinerate batteries or leave where a child can find
them.
Your calculator cannot hold data in memory when
batteries are removed or become discharged.

Feb 02, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

My ti-84 plus it does not respond to the function + or - OR other function, & it come up to display very slow ,slow. thanks


Hi xvbanh,

You need to free up some memory. Try clearing your RAM. Your calculator should operate properly afterward.

Go to [2nd] [MEM] [7] [1] [2]

If your calculator still won't let you delete the RAM memory try the procedure below.

Remove one of the AAA batteries. Press and hold the [CLEAR] key. While holding [CLEAR],
reinsert the AAA battery and then turn the calculator on. The calculator should display the
message "RAM Cleared". Release the [CLEAR] key and then press it one more time to remove the message.

Jan 06, 2011 | Texas Instruments TI-84 Plus Silver...

1 Answer

My ti 83 will turn on when i press the clear thing but when i try to put something in nothing happens


Hi imagenius1,

You need to free up some memory. Try clearing your RAM memory. Your calculator should operate properly afterward.

Press [2nd] [MEM] [7] [1] [2]

If the steps above did not reset the memory to your Ti 83 family calculator try the procedures below.

Please be prepared to re-install the calculator's OS if you run through this process.

If you have a straight Ti 83 without the Plus or, Silver Edition label goto (Procedure 2) below. If your Ti calculator is a Ti 83 Plus or better goto (Procedure 1).


(Procedure 1).

  1. Try a new set of AAA batteries.

  2. Remove one of the AAA batteries. Press and hold the [CLEAR] key. While holding [CLEAR], reinsert the AAA battery and then turn the calculator on. The calculator should display the message "RAM Cleared". Release the [CLEAR] key and, then press [CLEAR] one more time to remove the message.

  1. Remove one of the AAA batteries. Press and hold the [DEL] key. While holding [DEL], reinsert the AAA battery and then turn the calculator on. The calculator should display "Waiting...Please install calculator software now". Follow the instructions for the TI-83 family or TI-84 Plus family to reinstall the calculator operating system.



  2. Steps to re-installing the operating system:
    ~Connect the TI Connectivity cable between the PC and the calculator.
    ~Click on Start >> Programs >> TI Tools >> TI Connect >> TI OSDownloader
    ~Follow the on-screen directions to reinstall the calculator's OS. If you could not install the new OS on your calculator goto step 4.


  3. Remove all of the batteries including the round lithium battery for 5 minutes. After the 5 minute period, reinsert all of the batteries and turn the calculator on. Adjust the contrast if necessary.

  4. If the above process did not reset your calculator. Try re-doing (Procedure 1) and, extend the time in step 4, by 5 minutes to 10 minutes before you put all the batteries back in the calculator.

(Procedure 2).


For a straight Ti 83 without the Plus or, Silver Edition label try the procedure below.


  1. Try a new set of AAA batteries.



  2. Remove one of the AAA batteries. Press and hold the [ON] key for 20 seconds. Reinsert the AAA battery and then turn the calculator on.


Jan 06, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

My HP 48GX just displays a black (all pixel) display screen with one vertical stripe down the middle. I tried reset button and now it displays 2 vertical stripes (the new one divides the right half in...


I just had this exact problem so I reset the memory as instructed below. Know I am back in business. Memory reset A memory reset will return the HP 48 to its factory-default state, which will erase all stored user memory. Use this feature very carefully.
  1. If necessary, turn the calculator on.
  2. Press and hold the ON+A+F keys simultaneously.
  3. Release all three keys at the same time. This should cause the calculator to display the message "Try to recover memory?"
  4. Press the A key to attempt to recover memory or the F key to erase the user memory. When A is pressed, occasionally the objects in memory are recovered in new sub-directories of HOME labeled D.01, D.02, et cetera, although there is no guarantee that all of the variables will be recovered. Pressing the F key will cause all information stored by the user to be erased from calculator memory. This will also affect any RAM card that is merged with main memory. If the card is not merged or it is write-protected, it will not be affected by this reset.
Hardware symptoms and solutions I. The display screen has a blue/purple blotch of color, even when the unit is off The screen is damaged, and the calculator requires service. Please contact HP . II. All of the pixels on the screen are lit (blue)
  1. Try to adjust the contrast by holding down the ON key and repeatedly pressing the [ - ] key.
  2. If the screen is still dark, try to halt the system using the keyboard.
  3. If this does not correct the problem, try to reset the system using the reset hole with the batteries removed.
  4. If this does not work, remove the batteries and let the unit sit for 48 hours. After 48 hours, replace the batteries. If the problem persists, attempt a memory reset. Although removing the batteries for 48 hours should erase the user memory, performing a memory reset will ensure that the calculator is reset to its factory defaults.
  5. If the problem persists, the unit requires service. Please contact HP .

Dec 30, 2010 | HP 48gx Calculator

1 Answer

Directions for changing battery


1. Remove slide cover. Place calculator face down.
2. Using a small Phillips screwdriver, remove screws from back case.
3. Remove back case.
4. Remove discharged batteries.
Caution: Avoid contact with other calculator components while changing batteries.
5. Install new batteries positive side up, as shown on diagram inside case.
6. Replace back case, and then replace screws.
7. Press: [OFF] [ON] [ON].
Caution: Dispose of old batteries properly. Do not incinerate batteries or leave where a child can find them.
Your calculator cannot hold data in memory when batteries are removed or become discharged.

Nov 27, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

When I go to clear the memory and hit 2nd Mem.. I get nothing. The calculator seems to be locked so i cannot clear the memory


Hi,
As the first step to you diagnosis remove the Main batteries out of the calculator and leave them out for a while. The memory should be cleared.
If that does not restore your calculator you may have to use the procedures suggested by TI for calculators that do not turn on.

Hope it helps.
Thanks for using FixYa.

Nov 18, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

My Casio Algebra FX 2.0 calculator won't "solve" in the cas-menu. It says: "Memory ERROR" but when I try to clear memory nothing happens! What is wrong and what can I do?


Hello,
I suggest you reset the calculator by removing the main batteries. This will free up space to solve the problem.
Hope it helps.

Oct 03, 2009 | Casio Algebra FX 2.0 Calculator

1 Answer

I cannot access my memory


"How can i delete this program without using memory?"

By that I am assuming the memory key on the TI, the only other way to remove applications is through the TI connect software which will require the use of a USB cable in the case of the TI-84.

TI connect will also let you backup anything important you may have on your calc. Good Luck:

Download TI Connect

Dec 16, 2008 | Texas Instruments TI-84 Plus Silver...

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