I am connecting the unpowered calculator to the computer via USB cable and getting the OS downloader up and running. Then, holding down the APPS key, I put the batteries back in and get the "waiting to receive" message from the bootloader. This is what worked for me before. However this time, the software is unaware of the calculator and cannot detect it on any com port. TiInfo and TiExplorer also don't detect the calculator so even though the calculator seems to go into the bootloader just fine I can't reprogram it. If I don't hit APPS, it just goes to the home screen but none of the keys work (except soft reset... that works but doesn't fix anything).
Is there some other mode (other than the APPS bootloader mode) that is even more low level that might work or ANY other option that might get this calculator working? If not, it is bricked and might as well go in the trash.
Niveau 1: MD (Membre Débutant)
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While you're connecting your TI-89 Titanium through a USB, check whether it's being correctly detected in the computer device manager.
Does a new device appear ? If yes, under which name ?
You can also try to find/borrow/buy a
It will allow you to connect the calculator to the computer using its mini-Jack 2.5mm serial port, which may still work in its state unlike its USB port.
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