New Version: 2015.06.17

[Tim Wessman]

(08-02-2015 08:43 PM)Cristian Arezzini Wrote:  Is it possible that a failed firmware transfer damages the calculator to the point that even the SYMB procedure doesn't work?

Nope. I've never once seen a unit that did not have mechanical problems of some kind not respond and be flashable.

Quote: Shouldn't that bootloader be protected?

It is.

The problem here is that something with your setup is causing bad scsi commands to hit the device over the USB. Unfortunately, I can't help with anything to diagnose that.

Only suggestion is that if you are going through a usb hub, try going directly to the computer. Or try a different port. I once had problems with on of my virtual machines not working properly for updates too. Turns out the usb was set to usb 1.1 in the config or something funny like that.