After flash my N9 i dosent boot, but Flash was succsess no Problems but the Phone dosent boot. The light in the left lower corner works for few seconds. I repeat the flash again but the Problem stay. The reason for the flash was i have the problem with messages have the wrong name.

did you try manually booting it using the power key? I suspect you didn't add the -R parameter to the flashing command hence it doesn't boot automatically.

I've tried both with the -R Command and with the power Button i tals disconnect the Battery but its always the same no boot no vibration. When i connect the Phone with usb the light flashing (load)

enable rd mode with this
flasher --enable-rd-mode

i do this and now??



Update: i see allways the blue light on the lower left corner and the camera led is going synchron in red light. On the Main Display there is nothing anytime

flasher --set-rd-flags=force-power-key -R

If that doesnt help, then its most likely your old water damage that has broken the display,