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The TI-84 Plus CE is a graphing calculator released in Spring 2015 by Texas Instruments. It includes a 2.8 inch color screen, USB port, apps, storage, and a 1200 mAh battery.

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It doesn't turn on and there where black lines on the screen what do I

It doesn't run on and when it did it had a black triangle and you couldn't see the numbers

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To assess your problem, open up the back and check for the following:

1. It has water damage >>>>> buy a new one, fixing it will cost more.

2. >>>>> It has taken physical damage ( dropping it, sitting on it, etc. ) buy a new one. It will take a fortune to replace the internal components now.

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First, check the batteries.

If they are good, probably just get a new one as fixing those can be expensive.

If you want, get a working one off of ebay and if your case looks better, do a part swap to make one good looking and functioning calculator.

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Hello さん、ありがとうございました!
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