TheLastMillennial

Recently my base model Surface Book 1’s original charger died so I replaced it with the SB 2's charger. Now whenever my...

It’s a long story, but I accidentally dropped my Surface Book Pen in the parking lot 3 days ago and only found it today....

Hi this sounds like a hardware problem. Unfortunately, unlike the TI 83 and TI 84 lineup, the TI 89 ti doesn’t have a standard ribbon cable you can fix, instead TI attached everything to one piece making it nearly impossible to fix yourself. Even the most skilled calculator enthusiasts I know haven’t been able to repair a TI 89 ti display. :( I’m sorry I wasn’t able to help you repair it, however if you have any other questions I’ll be happy to answer them.

Hi, perhaps the ribbon cable connecting the motherboard is partially loose. Just to be sure, I’d like you to run a self test (1) Turn the calculator on and put it on the home screen (2) Press [mode] (3) Press [Alpha] (4) Press [S] (the ln key) (5) Press [enter] four times (congratulations, you’re now in the diagnostics section!) (6) Press [on] (7) Now your calculator should be displaying different patterns on the screen. Press [enter] to cycle through all 45 or so patterns and contrasts, please tell me if the bottom part of your display works for any of the patterns. (8) Press [on] multiple times to exit the diagnostics section If your screen still doesn’t work, I’d suggest looking at a topic on ribbon cable repair which you can find here. Good luck, please let me know if you have any issues or questions!

To exit the 'power to' section just press the right or left arrow key until the flashing cursor is on the part of the equation you want. For future questions, please create a new question topic rather than posting your question as an answer to someone else's question :)

Unfortunately, although that display looks similar, it’s not compatible with the TI 84 Plus CE. Most likely the driver is incompatible because TI loves to make it difficult to find compatible replacement parts. The correct part is a GiantPlus GPM1421C0 the latest display is a GPM1607A1 fortunately, it doesn’t matter which one you get since they are interchangeable. Unfortunately, I have no idea where you could buy one, we believe TI sources them directly. :( If you want to be sure you’re getting the correct display, I would suggest buying a broken TI 84 Plus CE(-t) that still has a working display and salvage the display out of that. (I should add though that it’s quite difficult to find a broken TI 84 Plus CE) Make sure not to buy a TI 84 Plus CSE since the display is NOT compatible with the TI 84 Plus CE. If you’d still like to test the display to see if anything works, (1) turn the calculator on (use the screen shot software to be sure you’re on the home screen) (2) Press [mode] (3) Press [alpha] (4)...

The easiest possible fix is to try and push the cable into the calculator’s port harder. You’ll have to plug it in harder than you’d expect, you’ll feel a click when it’s properly connected. If that doesn’t work, this could be the result of a faulty cable. Try using a different ‘mini USB to USB type A’ cable. Trying a different power source (i.e. different computer or use a wall outlet) may work too. If that doesn’t work try archiving anything important and perform a RAM reset (press the little button on the back of the calculator), there may be something going wrong with the software that’s preventing it from charging. If that still doesn’t work, you should test if your USB port is faulty. Archive any important information since this will clear your RAM. Get out your mini USB to mini USB cable, a friends TI 84 Plus CE, and connect them together with side A in your calculator. Turn the both on, then on your calculator press [mode] then [alpha] then [s]. Press enter until you reach the Diagnostics screen....

Hi, unfortunately, I don’t know of a place where you can buy just that part, however you can search for a dead TI 84 Plus CE on Ebay then use that calculator as a donor device. Thankfully, removing the plastic cover isn’t very hard, the glue holding it on is pretty weak. You just need a suction cup and maybe a spudger (or thin flat head screwdriver). (1) Take the suction cup and place it on the screen, try to avoid putting it over the cracks as that may mess it up. (2) Then pull up on the suction cup. You don’t need to worry about damaging anything by pulling of the cover so you can be as forceful as you’d like. The cover should come right off. (3) You can now take off the other calcualtors plastic cover and swap your calculator’s plastic cover with the donor calculator’s. At this step you have the option to replace the glue with something stronger so dust doesn’t get in the shell and on the LCD. Be sure not to get any glue on the LCD, that’s been a common mishap to others who have taken off the plastic...

Are you sure you should be taking apart school property? ;) Anyways, you need to remove all the rubber feet on the calculator since there are screws under each of them. Also, I believe there are more screws located underneath the battery. You will need to remove the battery cover, then remove the battery itself, then you should be able to see the screws. Remove those and you should now be able to pry apart the calculator. Could you please tell us exactly what’s wrong with your calculator? It may not require you to disassemble it. EDIT: If your calculator is acting like that then there’s most likely a software issue and (hopefully) not something with the hardware. There are a few things you can try to get the calculator working. (I got this info from TI Planet ) Press the reset button, then hold down the keys: (Some combinations are handled by the boot1 (earliest stage) and cause their effect as soon as the device is (re)starting. Others are handled by the Boot2 and cause their effect when the loading bar...

Hi, have you tried pressing the Reset button on the back of the calculator? Your RAM will be cleared but it should fix your issue. If that doesn’t work, I’d suggest looking at the TI-84 Plus CE Calculator Recovery guide.

I don't know if you can even get a new print head anymore, that calculator is over 30 years old! You may be able to get by with cleaning it off though. There's some tutorials on YouTube, one video I found used 99.5% isopropyl alcohol and a tooth brush: https://youtu.be/QWD5iwWl_MI?t=14m34s Hopefully your calculator prints the same way. Unfortunately, I have no idea how to take it apart nor how to get to the head. However, those old machines normally are reasonably easy to disassemble so you can probably figure it out. Sorry I couldn’t help much, however if you run into any problems I’ll still try to help! Just comment to this answer and please share some pictures if you can; pictures can really help diagnose what’s wrong or what needs to be done.

If this only happened right after you cleared the history, then it’s not the display, you just need to do a RAM reset. (Take out the backup battery and one of the AAA batteries. Hold down ON for 10 seconds, then put the backup battery back in lastly, put the AAA battery back in.) It may also help to reinstall the OS. Since that’s a more complex procedure I’ll refer you to this video that explains how to do it. If this has been happening over the course of days or weeks then it’s definitely either display issue or a battery issue. You can try just replacing the batteries but it that doesn’t work then Nick’s answer will help you out.

Sadly, even if you got a different color, a body swap isn't easy. There's heat melted and glued parts that are difficult if not impossible to put back. Your best bet is to try and glue it back together, or try and use the warranty to get a new calculator. :/

@evankaba Well the goal is to buy a cheap, broken calculator not a brand new one. Unfortunately it’s quite difficult to find a broken TI 84 Plus CE. It’s also very difficult to find replacement parts since TI sources many parts directly from manufacturers. Could you share what’s wrong with your calculator and which part you need? I might be able to help you out.

@the_pimaster Sorry it took a lot longer for this one. I’ve been asking some of my friends about this and unfortunately I think your best bet is to contact TI. I’ve never seen a calculator just… die like that before and it’s quite confused me; if I find a solution I’ll be sure to notify you. For now though you can email them at: ti-cares@ti.com or call 1-800-TI-CARES (toll free). I apologize I wasn’t able to help you with this, if TI somehow gets it working again, please inform me how they did it!

@the_pimaster Ok, just checking, you do have a TI-84 Plus CE? There are similar calculators out there that have different key combos. Also, what do you mean by On+Ac+Reset? The correct combination is [2nd]+[del]+Reset. I’m surprised the computer doesn’t even recognize the calculator is connected, does the LED by the USB port turn on when you connect it to power? If so, what color?

What were you doing when the calculator was last working? Did you accidentally spill something on it, drop it, or crush it?

Are you sure it was the 83 Plus you transferred the internals to or was it the 84 Plus? The 84 Plus uses the same shell design as the 89 and I've never heard of fitting the 89’s internals into an 83 Plus! That's not saying it's impossible though, cool story!

I think you should add the phrase “JBL Spot” somewhere in this guide. Although I searched the web and iFixit, this guide didn’t come up because I was searching for JBL spot rather than JBL spyro.

That moment your recognize your colleague’s dog in the last photo.

P.S. You can buy spare mini USB ports from sites like Amazon or Ebay.

Hey louis liu, I updated this guide with a link on where to buy the battery. It cost about $12 USD on Amazon: http://a.co/d/iTK2V0v

I don’t believe you can buy the motherboard anywhere. However you can salvage them out of other damaged calculators.