Camera can not switch off

Camera: DSC-P150 Sony Cybershot 7.2 Megapixel

Problem: Camera wont turn off. It turns right back on a few seconds after I hit the power switch. The camera intermittently turns on by itself.

Solution:
I recently experienced the exact same problem. The solution is to remove the battery, and fully disassemble the camera. Start with a clean desk or table top. Have a tray ready to hold your screws they are very tiny. Do not loose them stores do not sell replacements. Your best luck to find replacement screws would be ebay. Have a good lighting these small detailed parts strain your eyes. Remove the 7 small silver Phillips head screws on the outside of the case. Separate the case carefully, and partially with your finger nails. Unplug the small electrical connector with 2 wires work it slowly back and forth with a small flat head screwdriver then gently pull on both wires. Slowly separate the case a little further so you can see what else needs to be unplugged. Proceed to remove the LCD screen and remaining screws. disconnect all of the tape style electrical connectors by gently twisting and pulling along the two outer tabs with a small flat head screwdriver. Work the connectors little by little back and forth with the screwdriver. Be patient and do not force anything or else it will break. If you get frustrated set the camera down and take a break for a while. Caution stay away from the flash area. This is the Shock Zone Danger! I repeat Danger! There is a battery looking thing probably a capacitor located near the flash. If you touch the contacts or tape connector on the contact side with the screwdriver or your fingers it will shock your pretty good. It is pretty hard to avoid especially because this connector also needs to be unplugged. Remove the camera into two halves.The trick to removing the connectors with no tabs on the sides is to flip up the black tab with your finger nail and pull the wire tape out with your fingers. Completely remove the circuit board from the camera. With an old, clean, soft tooth brush, and 91% Isopropyl alcohol scrub the circuit board clean so it is shiny new. Be sure to clean all of the connectors male and female as well as the wire tape contacts. Flip up those black plastic connector locks and clean those terminals. Corrosion build up from the moisture or water exposure caused this condition where the camera turns on a few seconds after you turn it off. Your goal is to remove all of that white, powdery, flaky looking corrosion. You may have to look closely but its there. After you have fully detailed and inspected your circuit board allow some time for these parts to dry. Use a can of compressed air to speed the drying time, and remove dust from other hard to reach areas. Use q-tips to clean the lens and view finder etc. Do not soak anything in the alcohol only apply a light amount to the soft bristled tooth brush and q-tip. Reassemble the camera very carefully in the reverse order. Be sure to put all of the screws back in there correct locations. There are only two screw sizes that you will be removing small silver ones and a little bit bigger black ones. Leave the black lens and motor assembly alone. After doing this my camera is 100% fixed. I hope this helps everyone out there resolve this issue. If you follow these directions and it works for you too please email me your results to [email protected]. Good luck to all.

Hello, drying is the option that can not always cure the problem. The circuitry inside the camera is very sensitive to humidity & moisture. In your case I would advice getting a professional help from the technician with best references. In future please avoid the high humidity exposure or purchase a special case for this kind of use. If you need more info please advice