I've new information about my problem.
I've open the bold, take out the batterie, charge it completly with an other bold, let the 1st bold connected to the PC, wait around 2 hours and put the battery.
So, the Bold boot completly and on the sreen i've the 507 error : it's mean that the wipe via JL_Cmder was successfull !!
But then, the Bold turn off and impossible to do a reboot and install the RIM OS completly. I always got an error with DeskTop....
A thing : now, i've a red light 2 times every 5s.... What's mean ?