My wife and I both have Samsung Galaxy S7s. I am able to plug mine into the computer for file transfer and have no issues. I then take my wife's phone and using the same cable in the same port the computer wont recognize the phone. The connection appears to be good as it will start charging.
I have tried every suggestion I can find to get it to work. I tried entering debugging mode and setting USB config to mtp and photo. I have tried restarting multiple times. I do not have the option to change the file transfer type from the drop down menu as it just isn't there. I only see charging and after hitting that it only gives me details about the battery. I have tried going into to device manager on the computer and looking for the device there and it doesn't show up anywhere.
All drivers are up to date. I am using windows vista.
Please help!