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How do I fix a calculator (TI-84 Plus CE) that won't let me install an operating system onto it?
When the calculator screen turns on, it displays this -> (the picture attached) and when I tried to install the operating system from the TI Connect CE App on the computer, it gave me the message "unfortunately, it looks like TI-84 Plus CE has stopped talking to TI Connect CE. Reconnect and retry the transfer. If this keeps happening, contact TI for help. I have tried multiple times to reset my calculator, I've taken the battery out many times, and I've also tried installing the operating system multiple times.

2 Answers
- daniel gLv 71 year ago
Sounds something corrupted firmware and will need the right BDM to fix the problem.
That means sending the device back to TI for service.
- Anonymous1 year ago
use some third party program or get a better calculator