Salut t-blanc,
je sais pas si c'est pour la même caméra....mais essaie ça et donne-moi des nouvelles!
Instructions.
1Remove the batteries and reinsert them or install new batteries. Locate the battery compartment inside the camera. Pull out the two latches on the right hand side to open the camera. Install four "D" cell batteries into the compartment. The flat base of the batteries should touch the springs in the compartment.
2Press and release the power button, which is also inside the camera base. The power button sits above the camera compartment next to the "Menu" button. The display will flash "HHHH," indicating the setup process is active.
3Use the factory default password to gain access to the menu. Do this by pressing the "Enter" button above "Menu" inside the camera base. Pressing the "Enter" button four times sets the password to the default setting of "0000."
4Follow the LCD screen instructions to set the time and date. Continue through the setup process until the key icon appears. This is the prompt to change the passcode.
5Use the "Up" and "Down" keys to select the digits for your new passcode; the "Up" and "Down" keys are next to the Enter button. Set the first digit and press "Enter" to secure it. Repeat this process until the four-digit programming is complete.
http://www.ehow.com/how_6395308_reset-passcode-bushnell-trail-camera.html