Modifying Build.prop in PC

Image courtesy of Androidsis.com

Modifying build.prop using your device is handy as it won't need connection to a computer and typing complicated shell scripts.  Unfortunately, bad luck happens and some things just do get wrong sometimes.  You will need to use the pc to revert back to your build.prop backup.

TO MODIFY BUILD.PROP VIA ADB (Android Debug Bridge)
     1. On your device, go to Settings-Applications-Development, turn USB debugging on.
     2. Connect device to pc.  Do not mount storage card.
     3. Download the ADB files if you haven't already got them.
     4. Extract the 3 files to the root of your Windows drive (C:\).
     5. Go to "Run" or "Command Prompt" and type cmd, Enter key.
     6. Type CD.. repeatedly until you just see "C:\"
     7. Type "ADB" and Enter key.
     8. To copy build.prop to root directory of Windows, type

                                ADB pull /system/build.prop c:\

     9. Now open build.prop saved in C:\ with Notepad. Edit as you wish. Save.
     10. To put modified file back to device, type

                                ADB remount
                                ADB push c:\build.prop /system/
                                ADB reboot 

     11. Unhook usb cable. Done!

TO REVERT BACK BUILD.PROP BACKUP

     1. On your device, go to Settings-Applications-Development, turn USB debugging on.
     2. Connect device to pc.  Do not mount storage card.
     3. Download the ADB files if you haven't already got them.
     4. Extract the 3 files to the root of your Windows drive (C:\).
     5. Go to "Run" or "Command Prompt" and type cmd, Enter key.
     6. Type CD.. repeatedly until you just see "C:\"
     7. Type "ADB" and Enter key.
     8. To copy build.prop.bak to root directory of Windows, type

                                ADB pull /system/build.prop c:\
                                ADB pull /system/build.prop.bak c:\

     9. Delete build.prop. Rename build.prop.bak to build.prop.
     10. To put back modified file back to device, type

                                ADB remount
                                ADB push c:\build.prop /system/
                                ADB reboot 
     11. Unhook usb cable. Done!