Introduction: Ti-84 Basic Disassembly
How to disassemble your Ti-84 or Ti-84 silver.
Tools needed:
1) Torex #7 (t-7) screw driver
2) Small Phillips screw driver
Step 1: Remove Battery Cover
Remove main battery cover and take out batteries.
Step 2: Remove Backup Battery Cover
Remove the back up battery cover, this will require a Phillips screw driver. After cover has been remove *take out the back up battery.*
** WARNING**
Taking out the backup battery will clear your system RAM, which means that all of your saved programs will be gone.
Step 3: Remove Rear Cover.
Use your Torx screw driver to remove the 6 screws noted below.
Step 4: Remove 4 Rear Screws.
After removing all 4 screws take a flathead screw driver or a knife and gently pry the 2 halves of the cover apart at each corner. You will hear it pop a few times, after prying a little cover should come off with ease.
Now that you have removed the rear cover you should see a foil backing over the main circuit board, to remove this you will have to first remove the 2 screws marked below.
Step 5: Remove Circuit Board.
Now you need to remove the other 4 circuit board screws.
After removing the last 4 screws the circuit board should be loose, lift up on it carefully to avoid flinging keys everywhere (sometimes the keypad will stick to the circuit board).
Step 6: Keypad
If your keypad didn't come out when you took the circuit board out it will look like this. Just take you keypad out and your Ti-84 is completely dissembled.
Step 7: Finished!
Now your ti-84 is completely dissembled. Do with it as you please, in my case my keys were sticky so I used some isopropyl alcohol to clean them off.

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24 Comments
3 years ago
To remove the battery cover, press the tag towards the bottom of the TI84 battery cover AND NOT towards the top of the TI 84...
3 years ago
Thanks for the tutorial!
8 years ago on Introduction
Hey,
Thanks for the tutorial. Currently, I don't have the tools to get the screws on the back off, but until I get the tools, I would like to know if the faceplate comes off. Does the grey screen frame come apart from the black area with the keys? I want to get a colorful replacement part just for the piece that surrounds the keys, so, does it come off?
11 years ago on Introduction
I needed a T6 Torx to disassemble. I had a TI 84 quit working. I ordered a used one on eBay, but the case had a name on the back and showed a lot of wear. I disassembled both to put the parts of one case into the other. Works fine.
12 years ago on Introduction
Does anyone know if you can buy and replace the screen on a Ti-84 +. I work for a school district and we have 120 of them 5 years old. Some of the screens have the lcd's busted by kids. Any thoughts from anyone?
12 years ago on Introduction
Thanks for the instructions! This helped me disassemble my TI-84 Plus Silver Edition and turn it into a Gold Edition! The outcome can be seen here.
12 years ago on Introduction
im thinking about disassembling my ti-84 so I can custom paint it a bit...will the calculator still function properly after disassembly? I disassembled my ipod mini once and it never worked again...lol
13 years ago on Introduction
would it be possible to swap the front cover for a TI84 Plus one? to allow for faceplate swaps.
15 years ago on Introduction
Okay, so funny story. A week after I posted this Instructables a classmate came up to me and asked to see my calculator, he looked at it and said "I think we switched calculators during our last quiz" I looked at the one he had and sure enough there were all the programs I thought I had lost when I removed the backup battery on the one that I took apart. I took apart a classmates calculator thinking it was my own :) lol... I still laugh about it. Any way I had to share it...
Reply 13 years ago on Introduction
HAHA well at leat you didnt break it!
Reply 13 years ago on Introduction
NIICE!
Reply 14 years ago on Introduction
haha what a noob =P
nice instructable!
15 years ago on Introduction
would it be easy to upgrade the memory, or can you do that at all?
Reply 14 years ago on Introduction
Here,Check this out
http://usb8x.sourceforge.net/
it has instructions on how to hook a flash drive to your calc
Reply 14 years ago on Introduction
I am not sure about upgrading the memory... I will have to look into it.
15 years ago on Introduction
Does anyone know how to silence a button? (When getting really into calculator games in class :-) lol)
Reply 15 years ago on Introduction
Just use it for about a year, and then it gets silent
Reply 15 years ago on Introduction
I think i've gotten a years use of use out of it. lol Thanks, Jonnyboy
Reply 15 years ago on Introduction
Well, maybe it was 2 years... (I've had my 84Silver for 3 years now)
15 years ago on Introduction
why would you disassemble your calculator ?