I cant open the trunk with the key and the botton and the dashboard on my altima 2009

Have you first checked your battery ? If it is good, then check fuses. Might want to check your starter, is it getting power when you turn the key to start ? Will need someone to help you for this procedure.

2008 Altima2.5S Trunk wont open GRRRRRR - Nissan Forums : Nissan Forum

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Dec 26, 2009 - 6 posts - ‎6 authors My trunk wont open from any of the buttons...the remote wont open it , the dash switch wont open it nor will the. ... Is there a fuse blown? ... 2007 Nissan Altima 3.5 SE CVT: 14.540 @ 96.530 MPH <----click here! ... When the cancel switch locatedinside the glove box is OFF, the trunk lid cannot be opened ... Trunk doesn't open
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the switch may already been broken

if the latch is broken you need to get a new latch.

Do not panic but instead consider calling a dealer to avoid making any mistakes here.

Try spraying WD40 or PB Blaster into trunk lock cylinder. Let it sit for a while to work things loose, then keep wiggling the key while you try turning it gently. Work the key in and out of the cylinder to try and free up the tumblers. As for the electrical switch, check your owner's manual to see if there's a "Valet" switch or some other lockout located somewhere else in the car.

Your trunk opener solenoid popper has probably gone bad and burned out. Have it tested and replaced if necessary.

Isn't there botton somewere on the door or left lower conner of dashboard to open trank remotely?

My Nissan 2009 Altima is doing the same thing and most of the time the key stays in a drawer. The dealership says they never heard of it. I suggested they just google the issue; it seems to be a problem for a number of years. They say they are going to test my keys for signals next week; will let you know. But doors unlocking, windows are opening and trunk is opening all randomly.