TI-89 titanium won't turn on

trickmaster · Joined: 30 Oct 2006 Posts: 2

I was transfering doorsos to my calculator(which i just found out wouldn't work anyway because it is hardware 4 from reading other posts) when the calculator froze. It said busy at the bottom and had a black bar across the top. I tried unplugging the usb cable, but it still didn't respond. As a last effort i removed the batteries, but when i put them back in it wouldn't turn on. I trie all of the resets inlcuding removing the backup battery. Any help would be appreciated.

rockvee · Joined: 24 Sep 2006 Posts: 45 Location: London, Ontario

hmm....removing the silver-oxide backup battery should do it...make sure you wait a few minutes before putting all 5 batteries back in.

baseballdude_ · Joined: 20 Sep 2006 Posts: 76 Location: Wisconsin

Also, try pressing [left] + [right] + [2nd] + [on] all at once.

rockvee · Joined: 24 Sep 2006 Posts: 45 Location: London, Ontario

or remove 1 battery, hold (-) and ) key as you put the battery back in, wait for 5 second before release the two keys. This will clear the Flash ROM through.

trickmaster · Joined: 30 Oct 2006 Posts: 2

just tried all of the above and left all batteries out for over an hour, all are brand new(and tested batteries). i also tried adjusting the contrast to see if it just was not showing up, but to no avail. btw thx for all the help

bluesuit · Joined: 08 Nov 2006 Posts: 42

the [)] and [(-)] option should work if you remove the batterie then replace it and don't release on the buttons untill the calc says "instalation in progress"