I am trying to install a p12 certificate on my Samsung Note. From what I've read, this can be accomplished with: menu->settings->Location and Security->Install from USB Storage (or SDCard storage, depending on the phone).

So, how do I transfer a file to the USB storage?

  • transfer a file to usb storage you mean from pc to phone usb storage or from phone to flash drive ? Commented Jul 22, 2015 at 23:54

2 Answers 2


For transfering files thorugh pc to USB: Goto settings>about phone> and tap build bumber several times until it shows you are now developer. Now goto settings> developer options> enable debugging mode. Now try connecting to pc (Make sure you have USB drivers installed).

For transfering files from phone to USB:* Make sure you have working otg cable. Use es explorer(recommended) to copy paste the files from phone to USB.


Go to settings-applications-USB debugging and enable that. If you're running ICS, go to settings-developer options instead. Now when you connect your phone via USB, it will show up as a mass storage device and you can directly copy files to/from the mass storage (and SD card if you have one).

Try placing the certificate in the root directory of your SD card and then import it.

  • In fact, you should put files not onto SD card, but in internal memory.
    – pwes
    Commented Apr 19, 2012 at 13:56

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