I have a Samsung Galaxy S4. I broke the screen a few days back and it was locked at the time. The phone is working because it can charge and I can hear the alarm and incoming calls and messages but I can't see a thing because it is all black. I can't possibly unlock the phone because the touch is not working too. I need to retrieve my files from the phone. So when I connect my phone using a USB to my MAC, it shows me absolutely nothing except this error:

 If your device's screen is locked, disconnect its USB cable, unlock your screen, and then reconnect the USB cable. 

Like I said, I cannot unlock the screen. I can't use Samsung's Find my Phone application because I never added a Samsung Account to it and so my device is not registered for remote data recovery. enter image description here When I connect my phone to my HP laptop via USB, it shows nothing, not even an error.

Is there any way I can unlock my phone remotely and retrieve my files?


2 Answers 2


I believe the S4 supports USB On-The-Go. If you get yourself an OTG adapter, you can use it to plug in a USB mouse and unlock the screen that way. A mouse click/drag works just like a screen touch in Android.

  • 1
    Do you mean, I could connect the OTG adapter to my computer and see my screen on my laptop? Because like I said, my S4 screen is black and I cant see a thing. Commented Jun 7, 2014 at 17:36
  • No, he means you can plug a standard USB keyboard or mouse directly into your phone with an OTG adapter. Use the keyboard to type in the unlock code, or use the mouse to click and drag to unlock, then unplug the keyboard/mouse and plug the phone into the computer.
    – Stephen S
    Commented Sep 10, 2014 at 13:15

I used an OTG adapter and a keyboard. Plugged it in and then powered up. Typed in my code then plugged into laptop running Kies. Got all my contacts and messages and more

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .