Came here to look for a solution as I'm having the same issue.  I am using Note10+.  1.  The Anywhere actions do not work anymore.  Can't take shots in the camera app.  Clicking the button only activates the Air Command menu when the pen is near the screen. Is it normal that it always shows Disconnected when the pen is removed?    2.  Whenever I remove the S-pen from the phone. There's notification that said the S pen is disconnected and ask me to insert the S pen into the phone to reconnect. 3.  But I am still able to use the S pen button to open the Air command menu. When I open the Air Command menu,  on the top right corner, it says "Disconnected".    However, I can still 1.  Write and create notes.  Holding the button to activate the erase function to erase my writing.  2. Create Screen off memo. 3. Sees the pointer when hovering the pen over my screen.  4. Press and hold the pen button, tap the screen twice to create a new note.    So is my S-pen disconnected or not?       ... View more

Did you eventually find a solution to your S10? ... View more

I get that screen on my Note9 when I connect the same samsung usb cable to the laptop. But not on my Note10+.   But when I plug in the Note10+ to my laptop,  the Note10+ is detected and will appear under Devices in my file explorer.       ... View more

That's my posting dude. It's frustrating looking around and can't find a solution to my issue. Is there a problem with my Note10+? Could it be my USB driver? Does both Note9 and Note10+ uses the same USB driver?        @fstrevisan wrote: <edit>, really. Same problem related here: https://us.community.samsung.com/t5/Note10/My-Windows-10-works-with-my-Note9-but-not-my-Note10/m-p/1440851/highlight/true#M37111   ... View more

I had two usb-c cables. Note10 knows acknowledged the connection to the laptop because I can see the following notification,     ... View more

Yes. Tested with two usb-c cables. IMO, I don't think this is a cable issue. Because all the cables allow my laptop to detect the Note10. Just not triggering the Note10 into DeX mode.   And on the Note10, it knows that a usb-c cable is setup between the phone and the laptop.   And yes, I have checked that file transfer is enabled. ... View more

I own both Note9 and Note10 plus. I am able to run DeX with my old Note9 on the same windows 10 laptop and with the same USB-C cable from Samsung. The moment I plug in the cable to my Note9, Samsung Dex will be activated on my laptop and the "Start casting with Samsung DeX?" message will pop up on my Note9. But all these does not happened when I plugged in my Note10+. Same USB cable and the same laptop. Windows will still detect the Note10+ , and it will show up in my File Explorer. But not Samsung DeX. I am able to connect the Note10+ to an external monitor via an adapter which support DeX mode. I have looked many times, "Transferring files/Android Auto" in Default USB configuration is checked. What else did I missed out? Any pointer is greatly appreciated.   Updated: Today I tested out with a Dex station adapter which I bought for the Note9 previously.  The Note10+ works perfectly using the HDMI output to my LED TV in DeX mode and screen mirroring. Could be root cause is on my windows laptop? I'm very sure I am running the latest DeX app on the Windows. ... View more

I have the same issue too but this "wipe cache parition" does not work for me. I own both Note9 and Note10 plus. I am able to run DeX with my old Note9 on the same windows 10 laptop and with the same USB-C cable from Samsung. The moment I plug in the cable to my Note9, Samsung Dex will be activated on my laptop and the "Start casting with Samsung DeX?" message will pop up on my Note9. But all these does not happened when I plugged in my Note10+.  Same USB cable and the same laptop. Windows will still detect the Note10+ , and it will show up in my File Explorer. But not Samsung DeX.  I am able to connect the Note10+ to an external monitor via an adapter which support DeX mode. I have looked many times, "Transferring files/Android Auto" in Default USB configuration is checked. What else did I missed out? Any pointer is greatly appreciated.         ... View more