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Press then release the [2nd] key. Press and hold the UpArrow to increase contrast (makes screen darker), or the DownArrow to decrease it (makes the screen lighter/fainter).
If the TI-84 SE does not function even though you are sure that the batteries are fresh, you can try manually resetting it by following steps:
1. Remove all of the AAA batteries from the graphing handheld
2. Press and hold the ON key for ten seconds
3. Replace the batteries
4. Turn on the unit
When you reset your graphing handheld, the contrast sometimes changes. If the screen is faded or blank, adjust the contrast by pressing 2nd and releasing up-arrow or down-arrow keys.
Ther is no reset button. You have to take the batteries out.
Take the AAA batteries out and take the back up battery out...located in a little door with a screw just above the AAA batteries. Leave the batteries out for about 8 hours. This is how you reset a TI graphing calculator.
try going into the memory men (2ND - +), and selecting option 2. Delete some stuff you know you don't need. If the problem persists, 2ND - +, this time option 7. Reset the defaults. You won't lose anything, it will just reset the settings that may be causing this issue.
My screen was frozen and I needed to do a manual reset. If you take out 1 battery from the back....hold the "del" key down and reinsert the battery while holding it down....it will reload the programming into the calc
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.
graphing calulators work much like computers. The have RAM space so they can remember what you have done recently and stuff like that. So when it's garbage collecting it means it's trying to find more space. This generally means that you don't have much much ARC or RAM space left. You can see this under your memerory manager. (2nd + enter) then you can reset your calculaor(2nd plus 7 1 2) or you can go to memory manager and unarchive your programs. Fur an example you have TI 84. Most new TI 84 have sientific tools. so if you don't you it take away the archive (*) by pressing enter and then hit DEL. the more RAM space and ARC space should make it so it doens't garababe collect. Hope this works. i can help you more if this doesn't work. GOOD LUCK
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