tsehaye, it is possible that this is caused by a stuck lens. If the lens extends but gets stuck, it will retract. After a few attempts, it will shut down. [http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html|Here is a] generic way of trying to fix it. Great site with good information. Of course make sure that your batteries are new and fully charged. the service manual to repair your camera is [http://www.sonyrus.com/comersus/store/catalog/sm/w150_sm.pdf|available here.] Hope this helps, good luck.