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winSharp93


Newbie


Joined: 16 Dec 2008
Posts: 5

Posted: 01 Jun 2011 10:14:57 am    Post subject:

Hello,

I just upgraded my TI84+'s OS to the latest 2.55.

However, TIConnect (Windows 7 Professional 64 bit) now keeps complaining:
Quote:

Cannot transfer. The operating system on the connected TI device needs to be updated to later version. Use TI Connect's Updates function to update to the latest operating system. (8C050003)


A common solution to this problem seems to be updating to the latest OS version (as the message says). But 2.55 already is the latest version as far as I know.

//EDIT:
Forgot to mention: I am connection to my TI84+ using the Silver Link-USB cable.

Any ideas on how to fix this?
Rebooting my computer didn't help.

Thanks for your responses!
Cheers
winSharp93


Last edited by Guest on 02 Jun 2011 07:58:31 am; edited 1 time in total
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winSharp93


Newbie


Joined: 16 Dec 2008
Posts: 5

Posted: 02 Jun 2011 09:31:41 am    Post subject:

Ok - resolved.
This problem was caused by an invalid *.8XP-file created by a custom written converter and not related to 2.55.
While TILEM accepted it, TiConnect didn't.

For reference: Bytes $44 and $45 of a 8XP-file are not intended to be used as a version information for the program itself although some documents may say so.
TiConnect seems to reject files in which they are non-zero.
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