My Ti-83 will not turn on even after i replaced the batteries, does that mean it's completely dead? i have had it for 6 years

Hi
its possible that the flat cable from the M/B to the Display is broken
not much you can do unless you know how to replace the cable

Please Install Calculator Software Now error
This message means that the operating system has been corrupted. These steps will allow you to update the OS.

Unit to Unit
• Connect two TI-83 Plus units by means of the data cable (short black cable that was prepackaged with the TI-83 Plus)
• Make sure that at least one of the TI-83 Pluses contains the current Operating System
• Select [2nd] Link
• Select "Send OS" option from the Link menu
• Make sure that the other unit still reads "Waiting Please Install"
• The OS should be downloading.

From the Computer
• Make sure you have the latest version of the TI Connect™ Software
• Download the latest version of OS for the TI-83 Plus to the desktop of the PC.
• Connect the appropriate TI-GRAPH LINK™ cable between the PC and TI-83 Plus.
• Since the TI-83 Plus is currently off, the TI-83 Plus will automatically turn on when the TI-GRAPH LINK Cable is inserted.
• On your computer, choose Start, Programs, TI Tools, TI Connect, TI OS Downloader.

TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible. If this doesn't do it, please reply to this post and we'll go on from there.

It calculator tells you Ram Cleared each time you turn it on, the most likely reason is that the backup battery is depleted. Its role is to keep the memory modules electrically refreshed when calculator is turned off. If the backup battery is dead, the memory is erased when you turn calculator OFF. Main batteries no longer supply power and the contents of the memory are cleared.

1. Check that main batteries are good and inserted in calculator.
2. Turn calculator OFF.
   
3. Replace the backup battery.
4. Turn calculator ON.
5. Press the [CLEAR] key to erase the "Ram Cleared" message.
   

Hello,
Well, if screen shows the RAM CLEARED message, that means your calculator is working. Just press the [CLEAR] key, message will be erased and you are ready to crunch numbers.

Hope it helps.

hello there here is a link for you...click me. be aware that you will probably lose any installed3rd party products.

Many TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on at all. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

dance around your calculator

2nd MEM RESET DFLTS This should restore your calculator to orriginal default settings. No offense but even the manual does not recommend wiping the memory, i would avoid this step in the future Get the TI-83 for dummies book It really helps d.l.l.