Did you happen to drop it accidentally? Or accidentally applied force into your camera? If yes, then there is big chance you will gonna have to replace the whole lens! If not, then it might just be dirt stuck inside your lens mechanism. To fix it, hold your camera with the lens facing the ground. Then, tap your camera repeatedly. Start with light tapping to moderate. If that doesn't work, spray condensed air directly into the lens part of your camera.
Do you really need a driver?
The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.
Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use iPhoto or any other photo management program.
I'm assuming by "shutter" you're referring to the one inside the camera and not the cover blades on the very front of the lens.
How old is the battery and do you use the camera a lot?
Old batteries can be fully charged but can become weak and not hold that charge when the camera is powered on. The shutter issue could be part of this as the battery might not be strong enough to power the shutter.
I think the batteries for these cameras are reasonably cheap so you could invest in a new one to see if that helps. An extra battery is always useful if you use the camera a lot.
If this is an old, well used camera part do wear out so if new battery doesn't help you may need to take it to a good repairer as the camera will need to be taken apart to find the problem.
The battery has probably swollen, they do when left flat for a long period of time.
Brute force is all you can use and hope you don't destroy the fixings.
Check battery polarity: Ensure that you have inserted the AA batteries correctly, aligning the positive (+) and negative (-) ends as indicated by the camera's battery compartment. Improper battery placement can prevent the camera from powering on.
Clean battery contacts: Over time, battery contacts can accumulate dirt or corrosion, hindering proper electrical connections. Use a clean, dry cloth or a cotton swab dipped in rubbing alcohol to gently clean the battery contacts inside the camera's battery compartment. Make sure to let the contacts dry before reinserting the batteries.
Replace batteries: Even though you inserted fresh AA batteries, it's possible that they may not have sufficient power to operate the camera. Try using a different set of new batteries or fully charged rechargeable batteries to eliminate the possibility of a power issue.
Reset camera settings: Some cameras have a reset option that restores the default settings, which can help resolve certain issues. Look for a small reset button or a menu option within the camera's settings to perform a reset. Refer to the camera's user manual for specific instructions on how to reset your Samsung Digimax 301 model.
Firmware update: If your camera has an outdated firmware version, it may cause compatibility issues or malfunctions. Check the Samsung website or contact their support to see if there are any firmware updates available for your camera model. Follow the provided instructions to update the firmware if necessary.
This is a very cryptic, non specific, vague question. Google seems to think that you are trying to say in the least amount of words that there are no files on your SD Card??
https://www.google.com/search?q=Samsung+NV3+camera+no+file
This usually happens if you are using a modern SD Card that is FAR too big for the camera specs, OR you didn't format the card within the camera.
The Maximum capacity you can use is 2GB
Your Samsung NV3 Digital Camera is compatible with 2GB Micro SD memory cards.Maximum Memory Capacity: 2GB
Cable Type Compatibility: USB
Memory Card Compatibility: Micro SD
https://www.google.com/search?q=Samsung+NV3+camera+no+file
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There are a few possible reasons why your camera is behaving in this way. One possibility is that the camera's firmware is malfunctioning, which can cause it to get stuck in a loop trying to connect to a computer. Another possibility is that the camera's USB cable or port is damaged, which can also cause this issue. If the problem persists, it would be best to contact Samsung customer service for further assistance. They will be able to diagnose the issue and provide you with a solution.
Try this. First try another memory card. This will help work out if it is a camera or a memory card issue. Remove the card and take a very close look at the metal contacts on it. Your looking for dirt or damage like scratches or missing metal. Next using a light, look inside the slot the card fits into for loose dirt or lint. Connect the memory card to your computer/laptop and check the card registers on there. You could also try re-formatting the card to clear it and reset it to factory level.
This could be a lot of things, first is check the charger with a volt meter to be sure that it is suppplying the right voltage. The next thing is to disassemble it and check parts that you probably dont have the right gear for and if you do get the gear you are going to spend more than it is worth. There are MOSFET devices inside and they are mounted on the surface of the board, they require special tools etc. Here is a guy that does a lot of these to show what is involved. NorthridgeFix - YouTube