Update to NC1 is the last thing I want to use, and yes you are right I odin stock NB1 with no mods, root etc.
Find one more solution to make ROM slot in SS and install custom rom in it, but I don't understand how it can help.
THE BEST WAY FOR...
Ok, so i read this
and install sucesfully the CW recovery
so i copied CyanogenMod 7.2 STABLE (2.3.7) . zip
and flashed with the menu on CW
all went fine until that point, when i reboot the phone
i get a white tmobile screen with the logo...