Why can't I access the /Internal storage/DCIM/Camera folder on my S24Ultra since 25H2 update?

It seems that is a result of change to Samsung's security. File Transfer setting is not persistent. However, I had to enter developer mode to manage it.

Hi Peter McNab, 

Thank you for posting your question in the Microsoft Q&A forum. 

Based on the information you shared, the problem stems from a combination of the recent Windows 11 25H2 update and your phone's USB "Transferring files" setting not being persistent. For security, your phone defaults to "Charging only" every time it connects. Here is the solution you were looking for. This feature will change your phone's default setting to "Transferring files" permanently, so it connects in the correct mode every time. 

On your S24 Ultra: 

1. Please enable developer options 
2. After that, set the Default USB Configuration: 
   • Go back to the main Settings menu. 
   • Scroll to the very bottom and tap on the new "Developer options" menu. 
   • 
   • Scroll down to the "Networking" section. 
   • Find and tap on "Default USB configuration"
   • 
   • Change the setting to "Transferring files". 
   • 

After doing this, unplug your phone and plug it back into your laptop. It should now automatically connect in the correct mode, and you will be able to see all your folders (like DCIM) in File Explorer and Beyond Compare. 

If the steps above don't fully solve the problem, the issue may be a faulty driver on your PC. Here are the next two steps to try: 

Please force-Reinstall the Windows MTP Driver: 

1. Connect your phone to your PC. 
2. On your PC, right-click the Start button and select Device Manager. 
3. Look for your phone. It might be under "Portable Devices" (as "S24 Ultra") or "Other devices" (it might have a yellow warning icon). 
4. Right-click on your phone's name and select "Update driver". 
5. Click on "Browse my computer for drivers" > "Let me pick from a list of available drivers on my computer". 
6. Select "MTP USB Device" from the list and click Next. 

Try install the Official Samsung Driver: 

1. Disconnect your phone from the PC. 
2. Download the "Samsung USB Driver for Mobile Phones" directly from the official Samsung developer website. You can access via Samsung Android USB Driver | Samsung Developer 
3. Run the installer on your PC and restart it. 
4. Connect your phone again. 

Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link 

I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, we can work together to resolve this.  

Thank you for your patience and your understanding. If you have any questions, please feel free to reach out.  

I'm looking forward to your reply.