Samsung Galaxy S4 won’t connect to computer solutions.  Does your S4 not connect to the computer any more via USB.  This video should help you.  I have also written basic instructions below.

https://www.youtube.com/watch?v=9qAFgn-tZUU

Samsung Galaxy S4 won’t connect to computer solutions

Make sure you are using the Galaxy S4 cable that came with the phone.

Update your drivers.  Can be found here. http://www.samsung.com/levant/consumer/mobile-phones/mobile-phones/smart-phones/GT-I9500ZKAMID-support

If this doesn’t work try downloading Kies 3 from Samsung’s website.

If that doesn’t work try debugging mode.  Go to settings – More options – About device – Click device number 7 times. Then go back to developer options and make sure it is turned on in the top right hand corner and then scroll down to USB debugging turn it on and restart your phone.

The other option is to us the usb menu from the dialer pad and if it isn’t on MTP + ADB then change it and reboot your phone and reconnect the device.

Dial pad for usb menu numbers: 4.2  *#7284# 4.3  *#0808#

I recommend Airdroid for wirelessly transferring your files.