Sending files to a TI-84 Plus CE from a Chromebook

Your three options

TI’s Chrome app

TI made a TI Connect CE App for Chrome OS, which it calls a “concept application.” It can send and receive files, take screenshots and update the OS. It needs ChromeOS 77 or newer and a TI-84 Plus CE on OS 5.4.0 or newer. When you send a file you can pick RAM or Archive. Pick Archive for anything you want to keep through a RAM clear.

Don’t mix it up with the TI-84 Plus CE App for Chrome OS. That was an emulator of the calculator itself, TI has discontinued it, and it couldn’t receive files anyway.

Three limits come up again and again:

• Protected programs. Users on Cemetech have reported for years that TI’s Chrome app won’t send protected programs, “including most assembly programs.” That is why AsmHook2 comes with a second file, AsmHook2_unprot.8xp, for Chromebook users.
• Group files. Programs written in C need the CE C libraries, which come as one group file, clibs.8xg. The Chrome app doesn’t always send all of it. The libraries’ own release notes suggest clibs_separately_in_zip.zip instead: unzip it and send every file.
• Bundles. TI’s guide for the app says it can’t send the TI-84 Plus CE bundle file (OS and apps together).

It’s on a countdown. Google is phasing out Chrome apps. Its published schedule says ChromeOS 138 (July 2025) was the last version that supports Chrome apps you install yourself. Apps a school installs keep working longer: they’re disabled by default from around January 2027, unless the school turns them back on, and all Chrome apps reach end of life in January 2028 (October 2028 on the long-term support channel). So on a personal Chromebook you may not be able to use TI’s app at all. On a school Chromebook it works only while the school keeps it installed.

Sending from a Chrome tab (WebUSB)

WebUSB lets a web page talk to a USB device after you pick it from a list the browser shows. It works in Chrome and Edge, including Chrome on a Chromebook. It doesn’t work in Firefox or Safari. Nothing gets installed.

1. Close TI Connect CE and any other tab that might be using the calculator. Two programs can’t share it.
2. Plug the calculator in with its USB cable, turn it on, and leave it on the home screen.
3. Open the transfer page, choose your files, and click its connect or send button.
4. Pick the calculator in the list Chrome shows.
5. Wait for the transfer to finish before you unplug.

Which page to use:

• CiNotes files: the Send to calculator button in step 4 of the setup guide. Choose the ZIP from your email (or every file inside it). It sends everything to Archive and says “Done” with the number of files. It only appears in browsers that support WebUSB, and it’s still in beta.
• Anything else: WebTILP, a free, open-source web version of the TILP transfer software, released in 2026 by people from the TI-Planet community. It sends programs, AppVars and apps.
• Also used: ticonnectce.latealways.dev, an unofficial copy of TI’s Chrome app patched by a student to run in a normal tab. TI has nothing to do with it, and its author says to use it at your own risk.

None of these are made by TI. If one can’t find the calculator, try another cable port, restart Chrome, and make sure nothing else has the calculator open.

School-managed Chromebooks

Schools can turn off USB access for websites, block the Chrome Web Store, block specific sites, and turn off developer mode. Some do all four. If the calculator never shows up in Chrome’s list, or the page is blocked, that’s probably why.

Don’t try to get around your school’s settings. Send the files once from a home, library or friend’s Windows or Mac computer with TI Connect CE. Files in Archive stay on the calculator until you delete them.

Putting CiNotes on the calculator from a Chromebook

CiNotes turns your PDFs, study guides, question banks or typed notes into a searchable notes program for the TI-84 Plus CE and CE Python. How it works.

1. Check your OS. Press 2ND + 1. On OS 5.5 or newer, do the free one-time setup first. The jailbreak guide covers every OS. On 5.5 to 5.8.4, send AsmHook2_unprot.8xp instead of AsmHook2.8xp if TI’s Chrome app refuses it. For 5.8.5, the arTIfiCE author suggests TI Connect CE or WebTILP.
2. Make your notes at cinotes.com. The ZIP arrives by email. Download it on the Chromebook.
3. Open the setup guide in Chrome and use the Send to calculator button in step 4. Choose the ZIP. Pick the calculator when Chrome asks.
4. Open CiNotes. Press PRGM (choose TI-Basic if asked), pick the program named in your delivery email, and press ENTER twice.

Be aware: the CiNotes program is a protected file, the kind TI’s Chrome app is reported to refuse. Use the Send to calculator button or a Windows or Mac computer rather than TI’s Chrome app. If the button doesn’t show up, your browser or school doesn’t allow WebUSB.

Everything goes to Archive, so a RAM clear doesn’t erase your notes. After a RAM clear, open AsmHook2 from APPS once and CiNotes opens again. No computer needed.

Pasted notes up to 300 words are free. PDFs are $3 for up to 10 pages, then 10¢ a page up to page 50, then 5¢ a page. See pricing. CiNotes doesn’t run on the TI-84 Evo or on black-and-white TI-84s.

If something doesn’t work

• “Need LibLoad”: clibs.8xg never arrived. Send it again.
• “ERROR: Missing Library” or “Library Name: FILEIOC”: only part of clibs.8xg arrived. Send the files from clibs_separately_in_zip.zip on the CE libraries releases page one by one. More in the guide’s troubleshooting.
• ERR:INVALID when you open a program: your OS blocks C and assembly programs until the setup is done, or the RAM was cleared since. Fixes for ERR:INVALID.
• The calculator doesn’t appear in Chrome’s list: close other apps using it, replug the cable, and keep the calculator on the home screen. On a school Chromebook, USB access may be blocked.
• You can’t open the ZIP: the Files app on a Chromebook opens ZIP files. Double-click it to see the files inside.

Common questions

Related: every way to put notes on a TI-84 Plus CE, jailbreaking a TI-84 Plus CE on any OS, and notes on a TI-84 Plus CE Python.