Hello,
Here it is from the horse's mouth (TI Knowledge base)
For the TI-83 Plus Family, TI-84 Plus Family:
Caution:
The resets described in these troubleshooting steps will cause a lossof
applications, programs and data. If at all possible please create backup using TI Connect™ first.
Reinstalling the OS for the TI83/TI84 Plus family
How
do I correct the Error Waiting...Please Install Calculator SoftwareNow
message on my TI-83 Plus family or TI-84 Plus family calculator?
If an operating system (OS) update fails or is interrupted, the calculator will be in an inoperable state with the message Waiting...Please install calculator software now.The
most common cause of a transfer being interrupted is updating
theoperating system on a calculator with low batteries. Users will need
touse the TI Connectivity cable and the TI Connect software to send
theoperating system to the calculator. Make sure to have the
latestversion of TIConnect installed on the computer.
In order to install the software please follow these steps:
1. Connect the TI Connectivity cable between the computer and the calculator.
2. Click on Start >> Programs >> TI Tools >> TI Connect >> TI OSDownloader
3. Follow the on-screen directions to reinstall the calculator's OS.
Ifthe
message "Error! Press any key to turn unit off. Then turn unit backon."
appears on the graphing calculator, quickly, remove one batteryfrom the
calculator and reinstall it while the transfer is taking place.
Hope it helps.
Open Power Options by clicking the Start button, clicking Control Panel, clicking System and Security, and then clicking Power Options.
On the Select a power plan page, next to the plan you want to change, click Change plan settings.
On the Change settings for the plan page, click Change advanced power settings.
On the Advanced settings tab, expand Battery, expand Low battery level, Reserve battery level, and Critical battery level. Change the percentage of battery remaining that you want for each level, and then click OK.
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