Ok, I fallowed the advice and now it's a little bit better
I disconnected the battery for a while, now I reconnected it and I tried to flash.
Flasher doesn't autoclose in millisecond, the window stays open

Below new screenshots :






I understood I'm using a wrong image, different from the version of the phone. So I'm downloading this version
Phone Name : Nokia N9
Product Type : RM-696
Firmware Version : 40.2012.21.3
Variant ID : 7076904059
Varian Name : Rm-696 Ndt North Europe Cyan 16gb
Product Code : 059K0X6

From here : http://www.mrcrab.net/nokia/Nokia_N9...n=40.2012.21.3

If I'm wrong, stop me


In the meantime, i checked for the flat cable missing

It's the sensor flex. Another part in the shopping list

Tomorrow for update. Thank you