@Char
I was already do it and follow these instructions very carefully http://wiki.maemo.org/Updating_the_firmware.....
What I got ....??? Just a loop booting again and again.
Ok.... this is what...
My batery already full, I was charged with my friend phone.
And try to flashing but I got a new problem....
The message "Installing software update Please do not Interrupt 20%" is gone ... then...