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Calculator Community => TI Calculators => General Calculator Help => Topic started by: winsock on April 28, 2011, 05:29:24 pm

Title: Downgrade nSpires boot2 via serial?
Post by: winsock on April 28, 2011, 05:29:24 pm

I updated to os 3 without removing the new boot2(3D-Graping enticed me) and i want to have the ability to downgrade. I have the hardware to connect the calc to my computer. Well my netduino but it has enough memory to store the boot2 image to send.

I found this post on ti-bank but ti does not say anything on how to send the boot2.
http://ti.bank.free.fr/index.php?mod=news&ac=commentaires&id=1038

Anyone have anymore info?

Title: Re: Downgrade nSpires boot2 via serial?
Post by: mikehill2003 on April 28, 2011, 05:31:45 pm

I think you use xmodem to send the image to /phoenix/install, but as I've never done it I'm not sure.

Title: Re: Downgrade nSpires boot2 via serial?
Post by: critor on April 28, 2011, 05:37:05 pm

Yes, you reset your Nspire while pressing Home+Enter+B, and then send the boot2.img file in Xmodem, as described here:
http://hackspire.unsads.com/wiki/index.php/Hardware#RS232