Try the following: Make sure the battery is charged and turn on the camera. Wait till it turns off. Press the shutter button half way. If the camera turns on again, you're dealing with the auto power off feature. The camera will turn itself off to conserve battery power if you don't operate it for a set time period. Simply pressing the shutter button half way will turn the camera back on. You can change the time-out period, or disable auto power off altogether, through the camera's menu, as follows: Press the [MENU] button Use the Main Dial (the wheel next to the shutter button) to select the Tools tab (the fifth tab) Select the Auto Power Off menu item with the Quick Control Dial (the wheel on the back of the camera), press the [SET] button (the button in the center of the wheel). Use the Quick Control Dial to select the Auto Power Off time-out you want, or disable the feature by selecting [Off], then press the [SET] button. Press the shutter button halfway to exit the menu. The procedure is illustrated in Nikon D3300 Manual. https://guideusermanual.com/product-name-d3300-manual&po=4299&lang=English
If the screen display is shutting off, that's a normal function. If the camera is entirely shutting off it might be a bad battery or a very weak battery.
Answers & Comments
Try the following:
Make sure the battery is charged and turn on the camera.
Wait till it turns off.
Press the shutter button half way.
If the camera turns on again, you're dealing with the auto power off feature. The camera will turn itself off to conserve battery power if you don't operate it for a set time period. Simply pressing the shutter button half way will turn the camera back on.
You can change the time-out period, or disable auto power off altogether, through the camera's menu, as follows:
Press the [MENU] button
Use the Main Dial (the wheel next to the shutter button) to select the Tools tab (the fifth tab)
Select the Auto Power Off menu item with the Quick Control Dial (the wheel on the back of the camera), press the [SET] button (the button in the center of the wheel).
Use the Quick Control Dial to select the Auto Power Off time-out you want, or disable the feature by selecting [Off], then press the [SET] button.
Press the shutter button halfway to exit the menu.
The procedure is illustrated in Nikon D3300 Manual.
https://guideusermanual.com/product-name-d3300-manual&po=4299&lang=English
If the screen display is shutting off, that's a normal function. If the camera is entirely shutting off it might be a bad battery or a very weak battery.