My calculator will not turn on at all. I changed the batteries and nothing happened.
Try the following
1) Remove one of the AAA batteries, hold down on the DEL key while reinserting the AAA battery. The handheld might display Waiting…Please install calculator software now. Ignore this message. Remove and reinstall one of the AAA batteries again This time, do not hold down the DEL key.
2) Remove one of the AAA batteries, press and hold the [on] key for 10 seconds, release, replace the battery, then turn the unit on. Adjust the contrast.
3) Remove the AAA batteries for three hours. After the three-hour period, reinsert the batteries and turn the handheld on. Adjust the contrast if necessary.
If needed, reinstall OS by downloading the OS from the TI site and ....
On your computer, choose Start, Programs, TI Tools, TI Connect, TI OS Downloader.
(I am not the one who came up with this answer, but found it on an other site. If this doesn't work, please let me know)
Gr Marijn
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wont turn on
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My calculator just shut off one day without a low battery message. The AAA batteries had some white residue on them. I cleaned out the residue and replaced all 4 AAA batteries but calculator will not turn on at all. I tried the solutions offered here (remove 1 AAA battery hold "DEL" key while replacing etc) but they did not work.
thank you your first suggestion worked i am very grateful
My calculator won't turn on and when it is on it is very slow and i already replaced the batteries.
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