Copy Data From Memory Card To Rooted Android Phone [How To]
Many Droid phone users are looking for an easy way to copy data from a SD card to their Android phone’s memory. First of all, your droid phone should be rooted. In case you are a user of Motorola Droid phone, check out our article on root Motorola Droid phone with Android 2.0.2.0.1. This article also includes steps to install BusyBox on your droid phone, which is needed for copying contents from your memory card to phone memory using the adb shell.
Tip: Looking for an easy way to explore your Droid phone? Droid Explorer is a free tool which lets you explore and manage your Droid phone using Windows Explorer. It works with Windows XP, Windows Vista, and Windows 7.
Here are the commands to copy using the adb shell:
1. su
2. mount -o remount,rw -t yaffs2 /dev/block/mtdblock4 /system
3. cp /sdcard/file /system/app/file
4. sync
That’s it. You are done.

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