Hi everyone.

 I have bought a ti nspire touchpad two years ago and never been able to use it. The handheld was perfectly functional until I tried to update the software to version 3.x. The problem is that something went wrong with the update, and from there the keyboard has a weird behaviour. It is like that my touchpad calculator has the keyboard mapping of the clickpad one, and obviously it's unusable. Now I am trying to recover it with an usb-ttl adapter and Hyperterminal (like described here http://tiplanet.org/forum/archives_voir.php?id=3503 ), but I am not able to get a connection. Yesterday I even tried updating to 3.6 version of the OS, but the problem remanis the same.
I am using Hyperterminal with a windows xp sp3 laptop and a B75937 usb-ttl adapter.

here is the adapter: http://it.tinypic.com/r/90nfc0/8

the connection: http://it.tinypic.com/r/iygbjc/8

the whole thing: http://it.tinypic.com/r/zu30xh/8

Can you explain me where I am doing wrong?

 Thanks in advance.