How to copy a file into Micro SD via USB in Android? How can I copy a file into micro SD of an Android phone connected via USB to a PC with Windows?
Settings &gt;&gt; Connect to PC &gt;&gt; USB Connection Type


should be set to "Disk drive" (you can set this as a default connection type, but I prefer to do it manually when I need it).

Also, you can set it via the notifcations bar by clicking on the USB connection type as it appears; a selection box of the various options should appear.

Once mounted, you can open on your PC, and drag-n-drop, or what-have-you.

NOTE (from the Incredible manual, p29):


  Disk drive
  
  This mode is available only when you
  have installed a microSD card on your
  phone. Select  this mode when you want
  to use your storage card as a USB
  thumb drive, and copy files  between
  your phone’s storage card and your
  computer. 
  
  When Disk Drive mode is
  enabled while your phone is connected
  to the computer, you will  not be able
  to run applications that use the
  storage card, such as Music or Photos.
  For more  information, see “Copying
  files to and from the storage card” in
  this chapter.