I used to be able to connect my S20 Ultra to my W10 PC via USB-USBC cable. Now when I connect it, it will just charge the phone. There is no access to my folders on the phone. I have tried linking my phone with W10 and it only gives you limited access to photos no videos or documents. I have even installed syncios data transfer on my PC and it will not connect to my phone. What the heck happened?