# T4 torx? need to open up my ti-83 plus

**URL:** <https://forums.speedlife.net/t/t4-torx-need-to-open-up-my-ti-83-plus/158455>\
**Category:** NYSpeed Off Topic\
**Created:** [July 28, 2010, 8:28pm UTC](https://forums.speedlife.net/t/t4-torx-need-to-open-up-my-ti-83-plus/158455 "2010-07-28T20:28:43Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\
**Post date:** [July 28, 2010, 8:28pm UTC](https://forums.speedlife.net/t/t4-torx-need-to-open-up-my-ti-83-plus/158455/1 "2010-07-28T20:28:43Z")

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So the ‘on’ button on my calculator works intermittently and I want to open it up to see if I can clean the contacts of the button or maybe find a broken solder.

The smallest torx bit I have is an 8, and it is a lot smaller than that.

Where is the best place to find something along those lines? Radio shack? Home Depot?

Tia.

(I know these are cheap and I could just but a new one but I want to at least try)

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**Author:** ![tpgsr](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tpgsr/32/7374_2.png) [@tpgsr](https://forums.speedlife.net/u/tpgsr)\
**Post date:** [July 28, 2010, 8:41pm UTC](https://forums.speedlife.net/t/t4-torx-need-to-open-up-my-ti-83-plus/158455/2 "2010-07-28T20:41:17Z")

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I have used a flat blade jewelers screw driver to do just this. I have even taken a very small screw driver and ground it down once since i couldn’t find my jewelers set.

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**Author:** ![ZOMGVTEK](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zomgvtek/32/5063_2.png) [@ZOMGVTEK](https://forums.speedlife.net/u/ZOMGVTEK)\
**Post date:** [July 28, 2010, 9:26pm UTC](https://forums.speedlife.net/t/t4-torx-need-to-open-up-my-ti-83-plus/158455/3 "2010-07-28T21:26:05Z")

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Find a precision flat blade that fits, or grind one down to fit…

They open really easy.

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**Author:** ![nitroinsane](https://avatars.discourse-cdn.com/v4/letter/n/d26b3c/32.png) [@nitroinsane](https://forums.speedlife.net/u/nitroinsane)\
**Post date:** [July 28, 2010, 9:27pm UTC](https://forums.speedlife.net/t/t4-torx-need-to-open-up-my-ti-83-plus/158455/4 "2010-07-28T21:27:41Z")

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radioshack sells them

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**Author:** ![ILLRACEU](https://avatars.discourse-cdn.com/v4/letter/i/ee7513/32.png) [@ILLRACEU](https://forums.speedlife.net/u/ILLRACEU)\
**Post date:** [July 28, 2010, 9:27pm UTC](https://forums.speedlife.net/t/t4-torx-need-to-open-up-my-ti-83-plus/158455/5 "2010-07-28T21:27:45Z")

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go to sears spend next to nothing on a craftsman set

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**Author:** ![Joe\_Omerta](https://avatars.discourse-cdn.com/v4/letter/j/ed8c4c/32.png) [@Joe\_Omerta](https://forums.speedlife.net/u/Joe_Omerta)\
**Post date:** [July 28, 2010, 11:33pm UTC](https://forums.speedlife.net/t/t4-torx-need-to-open-up-my-ti-83-plus/158455/6 "2010-07-28T23:33:20Z")

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Advanced auto has the tiny security torx bit set for like $5. Granted you don’t need the security torx head, but it’s useful on car applications as well. Otherwise, home depot, lowe’s, or sears has the individual ones you can buy for dirt cheap.