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Why can't my calculator connect to my MacBook Pro?

I use a TI-84 Plus (recently upgraded to version 2.55) and a TI-89 Titanium on a regular basis for school, and I create my own programs for my benefit. I have connected both calculators to my PC with TI Connect multiple times without a problem to sync programs and rearrange files, but I want to use TI Connect X for Mac to use the new version with a program editor. Upon installing TI-Connect and connecting my calculator(s) to the computer, I receive no indication that my calculator is seen by the application. Only after turning off and then back on my calculator do I get this message:


User uploaded file

It reads: "Alert - A device was connected, but we could not communicate with it for some reason."


This has happened with both my calculators every time I try. I have uninstalled and reinstalled, used different cables, downloaded the software again, and connected to different usb ports, all to no avail. I sought out help from TI for this, and it was concluded that the problem was probably with my MacBook Pro because I am still able to connect to my PC and my friends' Macs, under the same conditions.


Does anyone know of a reason for why my TI-84 Plus and/or TI-89 Titanium cannot connect to my new MacBook Pro using the TI Connect X software?

MacBook Pro, Mac OS X (10.6.7), Calculator: TI-84 Plus and TI-89 T.

Posted on May 8, 2011 1:59 PM

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Posted on Mar 8, 2017 8:12 AM

Zimmertr1, I'm also having this problem with TI Connect on Sierra(10.12.3) The calculator I'm using right now is a TI-89 with the USB to 1/8 headphone jack cable. The cable part is: TEXGLINKFBL1L1C The cable appears in the system profile, so it has somehow registered with Mac OS X. But the TI Connect Software cannot see it. I think the only way we'll get them to update it is through another round of lobbying. If we email or call them up they might up the priority. ti-cares@ti.com (972) 917-8324 Stephen A. Anderson (responsible for education division) Texas Instruments Incorporated P.O. Box 660199 Dallas, TX 75266-0199 You might try to call your state/country sales contact: https://education.ti.com/en/purchase/sales_contact

61 replies

Mar 8, 2012 3:04 PM in response to dng54

dng54 wrote:


I have the same problem and getting tired of it, i cant believe that not even with the newest version of the macbook pro with lion my Ti 89 titanium can be recognized.

such a disapointment....


Tell it to TI. They haven't updated their software in years, apparently. It's precisely because you have a recent Mac and OS instead of an old one that you can't use the calculator with it.

May 4, 2012 3:01 PM in response to andrewmess93

I am having the exact same problem. I wrote TI in an effort to get support and was told that they would look into it; at some point in the future but, currently there was no date for engineering support. My TI-89 worked well with older versions of OSX and my macbook, but now my macbook does not confirm the connection. The problem is software related and support is required from TI. The problem is that TI is not eager to dedicate a resource to resolution of the issue.


I have Windows 8 in bootcamp but when using the Windows OS the problem persist. There is a mismatch between the manner in which the macbook receives input through the USB port and the manner in which TI Connect X communicates. It is not just your problem.

May 4, 2012 3:55 PM in response to proximaofap

Lion has been out for nearly a year now, and TI has done nothing to update its software for compatibility with Lion. Windows 8 still isn't officially released, and TI is apparently dawdling around on a compatibility upgrade for that, too. Perhaps you should take that as a hint that TI isn't interested in its calculator customers or the calculator market: a circumstance you are unlikely to be able to change or influence. Maybe it's time to find a different option.

May 22, 2012 12:37 AM in response to eww

If history has taught us anything (and I've been an enterprise security software engineer for 16 years now, so it has taught me quite a lot) Ti has zero plans to update this software for Mac. Like many people their bang for the buck is their Windows market, which honestly is a crying shame. You will find almost no customer base in the world more loyal than MBPro or MBAir. That Ti has chosen to completely ignore that growing foundation of loyalty is both staggering and troubling.


I remember when the HP41CV was the shiznit back in the day. Not very many years later HP started treating both their customers and more importantly their potentials like dog feces. Look how stellar their programmable calculator market is today. Hint: www.hpmuseum.org is the only place you'll really find any information on them form the company itself. The name of the site alone should tell you something. They thought they were the only game in town, and honestly for a brief period what they had to offer indeed held true to that ideology. But eventually, telling customers to take a flying leap and that you know their needs better than they do (even without canned stencils for email responses) will eventually get you exactly where they ended up. In a dusty box and stories of scientific lore from years gone by and a Wikipedia page crying for more citations.


Ti will make for a nice bedfellow with HP if this keeps up. I really enjoyed my Ti89, but I will handily use it for target practice long before my Mac is pried from my cold dead hands. If they think as HP once did, that they're the only game in town, they'll surely repeat the same fate. At this rate it isn't so much a matter of 'if' as it is 'when'. Writing Mac software, even under Cocoa and OS X, (especially under the latest Xcode; omg) isn't easy by any stretch, but I can assure you it is fractions of pennies on the dollar compared to the cost of losing customers that fork out the kind of money MB owners wielding Ti caculators are capable of.

Jul 4, 2012 1:44 PM in response to andrewmess93

I can tell you why they haven't updated the software in such a long time. It's a "Universal" application, which Apple is phasing out. Exspecially in Lion. They probably have to rewrite the entire app to get it to run for us on Lion. They should just release the source to the public and let us fix it. Guess I'll just use my Windows VM to run TI-Connect.

Dec 3, 2012 7:28 PM in response to andrewmess93

In case anyone was wondering, the software still does not work as of December 2012.


I tried connecting my TI-84 Plus SE to a Mac running 10.6.8 software.


This is disappointing considering I cannot afford a Windows license nor do I have access to an older Mac... so I'm out of luck. I saw this website linked above http://lpg.ticalc.org/prj_tilp/news.html has anyone had any success with that?

Why can't my calculator connect to my MacBook Pro?

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