My camera turns on but turns off right away, and i know its charged.

That sounds like your battery could be dead/not hold a charge. If you've charged your battery already and your camera still won't stay off and turns off right away, it's time to purchase a new battery for your Samsung TL105.

You can purchase replacement batteries quite cheap here:
http://www.amazon.com/Samsung-Digital-Camera-BP70A-Battery/dp/B003OEDQBE

It should be fine when off. It being plugged into the usb on your computer should "wake " the camera enough to fully charge it.( the computer will know that the camera is attached to it's usb port and it will automatically start charging your camera right away till its full)...Hope this helped some!

Your battery might be faulty or your battery contacts in need of cleaning. 1. Clean the battery contacts. a. Remove the battery/batteries and the memory card from your camera, then wipe the battery contacts with a soft, clean cloth. b. Reinstall the battery/batteries into your camera. Please make sure that you are installing a fresh/ fully charged battery c. Turn the camera on. 2. Without the memory card, turn your camera on. (If it works then it?s your memory card that is faulty) 3. Please test with the a different battery If you do not have access to another battery Try these steps instead: Please take the battery out of the camera. b. Insert the charger into the unit from the main socket and turn the camera on. If the camera works you will need to replace the battery. If you camera doesn?t switch on you will need to order a no power repair with KODAK or a new cable.

In that cased Do not charged the battery or turn On the camera You need to call TEch support right away Toll free 1 800 235 6325 EXt 12. Your camera needs for service. The mainboard of your camera is already defective thats why you encouter that problem.

You probably didn't get all the sand out and now it's preventing the lens from opening correctly prompting the camera to shut down.

Hi Most proberly the batery is shot. It wil be fully charged but it does not have "the amps" in this case miliamps to do the job. Pushing out the lens uses alot of the amps "miliamps" and the fact that it can't even rectract the lens back is a sure sign. If possible take the camera to a digital shop and test it with a known good batery!
Strongs

Mine did this as well. I now have it plugged into my PC with the usb cord. I think the ac charger that came with the camera is not functioning. Try charging it from your PC.

I changed the batteries again - after charging them up - and lo and behold it worked right away. Had obviously muddled up old with newly charged ones!!

Happy christmas

This maybe a solution. I had the same issue just now. Pulled battery, put back in, placed on dock, and still blinking red. So I removed the camera from the dock, pulled battery, put same old battery back in, placed on the dock and turned the mode switch on right away before it started blinkin red. It seems to be charging now with one bar and has not gone blinking red for 15 minutes.

I was outside with the camera in 10 degree weather taking pics of my dogs but had been inside for 20 minutes before placing it on the doc. I think something may have happened with the charging circuit and turning it on right away with it on the doc may have reset the charging. Try it. Hope it works for you.

When you charge the battery what does it do? Does the red light flash or stay solid? If it stays solid while it's charging then you should be ok. Casio doesn't recommend using any other brand of battery with their cameras because we don't know how they will react. I would say try a regular Casio battery and see if that solves your problems. I know that means a little more money but a lot of times I have seen that solve the problem right away.