Hey,
I currently experienced this issue. No explorer program/tool like: iFunbox/iTools/iExplorer, could find my iphone and itunes...
After hours of trying to find a fix i just tried this and it worked.
1.) Close iTunes and all other programs for iDevice. 2.) Download this: MEGA link | Mediafire link | Infiniupload link. 3.) Unzip the file by double-clicking on it and copy the DLL file inside the folder 4.) Open Windows Explorer 5.) Paste the iTunesMobileDevice.dll file into the following directory: C:\Program Files (x86)\Common Files\Apple\Mobile Device Support. 6.) Open iTunes and the tool you want to use, make sure to connect your device
NOTE: for ifunbox install this version if you still get the error. > DIRECT LINK