Question about HP 48gx Calculator

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Try to recover memory

Variables have gone, now I have two soft black keys at A B menu keys areas that say D.01 and D.02, press the D.01 and D.02 keys D.01 D.02 words appear in status area next to HOME

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  • HP Master
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Hello,
Press [Right Shift cyan key][ ' ] to return to the [HOME] folder. Press the [MTH] under the white [A] key and the math tools will reappear [VECTR], [MATR], [LIST], [HYP], [REAL], [BASE] etc.
Hope it helps.

Posted on Nov 09, 2009

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Ti 83 will not power on replaced all batteries


When you clear memory, the contrast sometimes changes. If the screen
is faded or blank, adjust the contrast by pressing 2nd and up- arrow or down- arrow keys .

Resetting RAM restores RAM system variables to factory settings and
deletes all nonsystem variables and all programs. Resetting defaults
restores all system variables to default settings without deleting variables and programs in RAM. Resetting RAM or resetting defaults does not
affect variables and applications in user data archive.
Tip: Before you reset all RAM memory, consider restoring sufficient available
memory by deleting only selected data.
To reset all RAM memory or RAM defaults on the TI-83 Plus, follow these
steps.
1. From the RAM ARCHIVE ALL menu, select 1:ALL RAM to display the
RESET RAM menu or 2:Defaults to display the RESET DEFAULTS menu.
2. If you are resetting RAM, read the message below the RESET RAM
menu.
• To cancel the reset and return to the home screen, press .
• To erase RAM memory or reset defaults, select 2:Reset.
Depending on your choice, the message RAM cleared or Defaults
set is displayed on the home screen.

Mar 25, 2012 | Texas Instruments TI-83 Plus Calculator

2 Answers

Ti 83 will not power on replaced all batteries


When you clear memory, the contrast sometimes changes. If the screen
is faded or blank, adjust the contrast by pressing 2nd and up- arrow or down- arrow keys .

Resetting RAM restores RAM system variables to factory settings and
deletes all nonsystem variables and all programs. Resetting defaults
restores all system variables to default settings without deleting variables and programs in RAM. Resetting RAM or resetting defaults does not
affect variables and applications in user data archive.
Tip: Before you reset all RAM memory, consider restoring sufficient available
memory by deleting only selected data.
To reset all RAM memory or RAM defaults on the TI-83 Plus, follow these
steps.
1. From the RAM ARCHIVE ALL menu, select 1:ALL RAM to display the
RESET RAM menu or 2:Defaults to display the RESET DEFAULTS menu.
2. If you are resetting RAM, read the message below the RESET RAM
menu.
• To cancel the reset and return to the home screen, press .
• To erase RAM memory or reset defaults, select 2:Reset.
Depending on your choice, the message RAM cleared or Defaults
set is displayed on the home screen.

Mar 25, 2012 | Texas Instruments TI-83 Plus Calculator

1 Answer

When i turn on my TI-84 silver edition only thing i see is a blinkin blaxk square on the top let corner.hiting any key wont do nothing it stays the same. Need help


If a checkerboard cursor ( black square ) is displayed, then either you have entered the maximum number of characters in a prompt, or memory is full.
If memory is full:

-Press 2nd then MEM and then 2 to display the MEMORY MANAGEMENT / DELETE menu.

-Select the type of data you want to delete, or select 1:All for a list of all variables
of all types. A screen is displayed listing each variable of the type you selected
and the number of bytes each variable is using.
-Press up-arrow and down-arrow keys to move the selection cursor > next to the item you want to delete, and then press DEL

Mar 23, 2012 | Texas Instruments TI-84 Plus Silver...

1 Answer

When i turn on my TI-84 silver edition only thing i see is a blinkin blaxk square on the top let corner.hiting any key wont do nothing it stays the same. Need help


If a checkerboard cursor ( black square ) is displayed, then either you have entered the maximum number of characters in a prompt, or memory is full.
If memory is full:

-Press 2nd then MEM and then 2 to display the MEMORY MANAGEMENT / DELETE menu.

-Select the type of data you want to delete, or select 1:All for a list of all variables
of all types. A screen is displayed listing each variable of the type you selected
and the number of bytes each variable is using.

-Press up-arrow and down-arrow keys to move the selection cursor > next to the item you want to delete, and then press DEL

Mar 23, 2012 | Texas Instruments TI-84 Plus Silver...

1 Answer

We have a TI-89 and it is froze on the home page. we tried holding the 2nd button , left arrow , rigth arrow and pressing the on button. it comes up with installation in progress , but when that is done it...


Hello.

Here is a procedure to reset the TI-89 to factory settings (found online):

  • Press the "Snd Mem" key to display the memory screen.
  • Press the "F1" key.
  • Press the navigation key to select the "RAM" icon, then select "1: All RAM" to erase all data and programs from the random access memory and press the "Enter" key, or select "2: Default" and press the "Enter" key to reset all system variables to original factory settings. This preserves any user-defined variables, functions and folders.
  • Press the navigation key to select the "Flash ROM" icon, then select "1: Archive" and press the "Enter" key to erase all data and programs from the read-only memory or select "2: Flash Apps," then press the "Enter" key to erase all applications from the Flash ROM. Select the "All Memory" icon and press the "Enter" key to erase all data, programs and flash applications from the RAM and Flash ROM.

  • Hope this helps.

    Aug 21, 2011 | Texas Instruments TI-89 Calculator

    1 Answer

    I found the "user's guide"


    Some keys have a letter of the alphabet next to them. The letters are A, B,C,D, M, X, Y. They correspond to memory registers (memory locations) in which you can store values.
    To enter a letter as when you are entering an expression with variables, you press the [ALPHA] key followed by the key next to which is the letter you seek. To enter letter A, You press [SHIFT] [(-)] if I am not mistaken.
    If you want to solve an equation (solve for X by default) press SHIFT (Solve) not the = sign at the bottom of screen.

    Feb 26, 2011 | Casio FX-115ES Scientific Calculator

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    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

    I stored a value for x. How do i clear it. I don't want to change it , I want to clear it. Thank You


    Press 2ND MEM 2 to get into the memory management menu. Press 1 for all variables or select the appropriate type. Scroll down if necessary to the variable X. Press DEL to delete it. Press 2ND QUIT to exit the memory management menu.

    Jun 28, 2010 | Texas Instruments TI-83 Plus Calculator

    2 Answers

    I need to clear the apps so that my students can test. What is the easiest way to do this?


    You can reset all of the memory. The RAM, user data archive memory, and system variables are restored to factory settings. All nonsystem variables, applications, and programs are deleted.

    Press 2ND [MEM] to display the MEMORY menu.

    Select 7 to display the RAM ARCHIVE ALL menu.

    Press right/arrow twice to display the ALL menu.

    Select 1 to display the RESET MEMORY menu.

    To continue with the reset, select 2. The message "Mem cleared" is displayed on the home screen.

    May 21, 2010 | Texas Instruments TI-84 Plus Silver...

    1 Answer

    How do you restore a TI-89 Titanium clac


    Perhaps one of the following sources will be helpful:

    To reset the TI-89 family, TI-92 family and Voyage 200 graphing calculators, press [2nd] [6] (reads MEM over the key). The [F1] menu appears and contains the following options:
    • All RAM - Clears all variables and programs from RAM only. This will not delete items from Archive or Apps.
    • Defaults - Does not clear any files from the calculator. Instead, this option resets the calculator settings to default, including the Mode, Graph Format, Table Setup, and other settings.
    • Vars - Clears all variables from Archive (Flash ROM). This option will NOT delete Apps or variables stored in RAM memory.
    • Apps - Clears all Apps from Archive. This will not delete any variables.
    • Both - Will clear all Apps and Variables from Archive. This will not delete any Variables from RAM.
    • All Memory - Clears everything from RAM and Archive, leaving only the Calculator OS and its components.
    For example, I think you will want to follow the last step above... which would be to press [2nd] [6] [F1] [1] [1] [ENTER] [ENTER].




    Also, if you are looking to clear all the RAM in another way I would take a look at the guidebook, which is downloadable from the following site in PDF format.

    http://education.ti.com/downloads/guidebooks/graphing/89ti/TI89TitaniumGuidebook_Part2_EN.pdf

    Take a look at page 951 and 952 for another way to clear the RAM

    Jan 29, 2009 | Texas Instruments TI-89 Calculator

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