My camera won't power on - Canon PowerShot SD600 Digital Camera

you must press the reset button inside the SD card door. Remove the flash card first. this should allow you to power the camera on.

Hi, bring to your nearest service center to repair it.

MSDC? appears on the LCD indicating that the camera is in Mass Storage mode.

see this causes and proceed . God bless you
If the camera won't turn on, check the batteries, or connect the camera to an AC adapter. If that doesn't work, remove all batteries, disconnect the AC adapter, wait a minute, reinsert batteries and reconnect the adapter.
If the flash doesn't work, the camera won't take pictures, or the screen keeps turning off, check that the batteries are strong.

Things to check first for a camera that won't turn on (no power, no lights, no noise, nothing) are battery contact points, and micro switches that are located on the battery and memory card doors. Troubleshooting tips on other things that need to be checked may be seen here. These tips won't work for every case, but they're worth a try.

But if there is some electrical activity, then you're more likely experiencing a lens error. In that case, see this article.
and this video:

Things to check first for a camera that won't turn on are battery contact points, and micro switches that are located on the battery and memory card doors. Troubleshooting tips on other things that need to be checked may be seen here. These tips won't work for every case, but they're worth a try.

Things to check first for a camera that won't turn on are battery contact points, and micro switches that are located on the battery and memory card doors. Troubleshooting tips on other things that need to be checked may be seen here. These tips won't work for every case, but they're worth a try.

Things to check first for a camera that won't turn on are battery contact points, and micro switches that are located on the battery and memory card doors. Troubleshooting tips on other things that need to be checked may be seen here. These tips won't work for every case, but they're worth a try.

Perhaps you have bad batteries? Connect it to another power source such as an AC wall outlet and use your power adapter and see if this helps. If it does not or you have already tried this then your camera may need to be serviced.

Thanks for the information.