It's possible that the battery may have lost its charge after being unused for such a long period of time. I recommend trying to charge the battery for a few hours and then attempting to turn the camera on again. If the camera still does not turn on after the battery is charged, there may be an issue with the battery or the camera itself.
If the battery is not the issue, there are a few other things you can try:
1. Make sure that the camera is not in "sleep" mode. If the camera has been inactive for a long period of time, it may enter sleep mode and appear to be off. Try pressing the power button to wake the camera.
2. Check that the memory card is properly inserted and seated in the camera. If the memory card is not properly seated or is corrupted, the camera may not be able to access it and may not turn on. Given this point, try to recover data from the corrupted memory card using data recovery software, such as iBoysoft Data Recovery (https://iboysoft.com
/), a professional file retrieval program that can be used to recover deleted or lost data from different types of storage devices (HDDs, SSDs, SD cards, USB flash drives, memory cards, etc.).
3. Check for physical damage: Inspect the camera for any visible physical damage, such as cracks or dents.
4. If none of the above steps resolve the issue, there may be a problem with the camera's hardware. In this case, it is recommended that you contact Samsung customer service for further assistance.