Put card in camera and format it through the settings. If it does not allow you A your card is corrupt, or B your memory slot is damaged. Try a new card for A if it still doing it, send in to repair shop for repair

Sounds like you are trying to take pictures in low light situations, this is a basic entry camera, low light quality pictures are in pro series level.

Blurry pictures come from the camera not being able to focus on an item, if you are in too low light and it can not find that item, you could also be taking the pic before it even focuses sounds like what ever you’re trying to use this for are quick and low light, both things you need pro series camera for. Check out the Sony A7R Mk iii for that performance.

If you do not believe it is above ^ then perhaps your lens unit is going back, usually the focus gear wears out, but youre describing more user error then camera error. ‘

perhaps a object broke off into the slot, it is common, look with a flash light to see if you can see anything then shake it out.

Barbara, this is a digital camera, not a cell phone.

Hello, you can try to push your lens unit back in alignment, look where it is cocked out and push opposite side. Sometimes that works, other wise you need to replace the lens unit motor or gear.

try my fix, see if that works, if it does. You are good, if not, your USB or main pcb maybe the issue and need replacement

One of your gears in lens unit has broken, they do not sell just gears, must send in for repair. likely to be cheaper to buy a new one though

Broken tabs, send in for repair or use tape to keep shut

Are they at least 1.5v each? Not all new batteries hold their charge, use a voltmeter. This camera needs a minimal of 6V to work. After that try cleaning battery contacts with a type writer eraser

buy your self a memory card reader, take the memory card out and put it into the reader. it is also more reliable this way then using a cord from computer straight to camera.