My buttons are not working
No button work except on
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Augustine has a good suggestion, try removing the AAA batteries and the backup battery, then try replacing them. If any of them are corroded, they may have permanently damaged the buttons.
If that doesn’t help, here’s a guide on getting to the keys that may help. Once you’ve gotten to the main board, check for any loose or dirty connections.
If you find the buttons are beyond repair, you can buy a cheap, used calculator and swap out the motherboard.
Guide
TI-84 Plus Silver Edition Backup Battery Replacement
Difficulty:
Easy
—
3 - 5 minutes
Guide
TI-84 Plus Silver Edition Motherboard and Screen Replacement
Difficulty:
Moderate
—
5 - 15 minutes
Guide
TI-84 Plus Silver Edition Keyboard Mat Replacement
Difficulty:
Moderate
—
10 - 20 minutes
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