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....

This does sound like water damage so immediately stop charging the calculator and remove the battery! That way you can avoid accidentally shorting out the calculator and permanently breaking it (I’m hoping that white screen is a software error that can be fixed later). Remove the back cover of the calculator using the teardown guide and dry off the PCB as best you can (make sure to get underneath the aluminum foil). If your calculator isn’t under warranty, then you can go ahead and break the heat melted bits holding the PCB to the front shell. That way you can make sure the front of the PCB, the rubber membrane, and all the buttons are dry. I’m not an expert at water damage so I would appreciate some guidance from the iFixit community for the following steps. (As I said above, I’m no expert so this next step may be unnecessary, but it won’t hurt the calculator to do it anyways) From there you should clean everything with at minimum 91% isopropyl alcohol (aka rubbing alcohol) (higher percents are better)....

That’s strange, it looks like your USB port is missing a structural piece that holds the contact points in place. Look at the cable you charge the calculator with, does it have a black piece stuck in it? Here’s an example of what mine (top) looks like compared to yours (bottom). Are you familiar with soldering or know someone that can solder? I’ll ask around but I’m pretty sure the only way to fix this is going to require replacing the USB port. You can take a look a the teardown guide so you kind of know what you’re getting into. Meanwhile, the only way to charge your calculator is to remove the battery and put it in a friend’s calculator, then charge it through their calculator. It should last you a month or so on a full charge if you keep your brightness low (press [2nd] then hold down the down arrow to reduce the brightness). I would check if your calculator is under warranty still, perhaps TI can replace the calculator for you. If worst comes to worst and you have to buy a new calculator, honestly a...

If your display looks something like Then that’s permanent pressure damage you’ve just applied to the monochrome screen. When you press on them hard the ink in the display gets all messed up. I’m unaware of a fix besides replacing the whole screen. You can probably find a broken calculator on Ebay that has a display that’s fully functional (it’s pretty obvious if there’s pressure damage) then salvage the broken calculator’s display and replace your working calculator’s display with it. There’s a teardown guide here: TI-84 Plus Disassembly Let me know if you have any other questions!

First, I’d try charging it from a different power source (like a different power brick or use your laptop). If the problem persists, then that sounds like a bad connection with the battery or something has gone wrong with the battery. When the LED turns orange, that means it’s trying to charge the battery but when it turns green that means it’s not detecting a battery to charge. Try taking the battery out and inspecting it for any damage and check if the three metal contacts are clean. Refer to Texas Instruments TI-84 Plus CE Battery Replacement if you need help with that. If the battery looks fine, then you might want to try a friend’s known, working battery or buy a new one to try. There’s a slight chance that pressing the reset button on the back of the calculator can force it to come back to life. Could you please tell me how old your calculator is? Someone recently posted a similar question and I’m wondering if they’re related.

This sounds a lot like a hardware problem with a circuit that’s broken for that key column. Unfortunately, I don’t know how to help you fix the issue from the hardware side and from the information I gathered I don’t think you’ll be able to fix any hardware issues before your ACT. However, MateoConLechuga may have away to fix it through software (1) Press [prgm] (If that button doesn’t work leave a reply and I’ll describe how to do it another way) (2) Scroll to the right over to ‘NEW’ and press [enter] (3) Type in the letter A and press [enter] again (4) Press [2nd]>[0] and scroll down to Asm84CEPrgm (If this is crossed out in blue, leave a reply and I’ll describe how to do it another way) (5) Press [enter] (6) Now type in EXACTLY the following characters (they should be on the same line as the Asm84CEPrgm token) (7) 210100F53678C9 (8) Press [2nd]>[mode] (9) Press [2nd]>[0] and scroll down to Asm( and press [enter] (10) Press [prgm] (11) Press [enter] on program A (12) Your screen should look like...

Hey, it looks like you got unlucky and received a defective display. Assuming it’s just the LCD that’s broken you could fix it by swapping it out with a known working display. Unfortunately, there’s no place for you to just buy the LCD by itself and there are very few ‘for-parts’ TI 84 Plus CEs out there. Since the calculator is less than 24 hours old, I would just contact TI Cares; they can send you a working calculator. If you need your calculator working right now then TI-84 Plus CE Recovery Techniques. might contain a temporary fix, however I don’t know how long the possible fix could last. I wouldn’t try opening up the calculator since that may cause issues with your warranty.

Hi, it sounds like there’s definitely a power problem between the battery and the motherboard. If the light turns green immediately when you plug it in, that means it’s not detecting a battery to charge. Does your computer recognize the calculator at all when you plug it in? Are all three battery contacts (in the battery compartment) clean and undamaged? What were you doing with your calculator right before it stopped working? Have you dropped it or accidentally spilled anything on it? I’m not really holding out hope, but there’s a chance TI-84 Plus CE Recovery Techniques. may help.

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 :)

@Infine Axel, I think this is the exact question topic you’re looking for: Why my charging light is always on? It kills the battery..

Oh no! What do you mean by “ when I pulled the screws, the screws came off the cover, like they are completely jammed”? Are you saying the screws on the battery compartment fell out? If so, that’s not normal. They should stay on the battery compartment.

Do you have any idea why your calculator could have suddenly died like this? How long have you had it? It’s possible it could just be defective.

I know you said it wouldn’t turn on, but perhaps you could try connecting your calculator to power then trying TI-84 Plus CE Recovery Techniques. ?

@forestguzman That’s not really an easy project. Perhaps there’s something wrong elsewhere in the calculator that’s easier to fix. Can you please tell me exactly what’s wrong with your calculator? Have you tried looking at TI-84 Plus CE Recovery Techniques. ?

For a project like that I’d suggest making a topic on a calculator forum like Cemetech.net or tiplanet.org since there are many people with more knowledge on that than I have.

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.