Add battery % meter display to your iphone

Posted by Madbot on Aug 3, 2009 in Madbot Madness, Techno |

Madbot says:

Had to do this again to load up OS 3.0.1 today. Instructions kept here for the ‘next’ time.

No idea why this was missed in all models except iOhone 3GS, but glad at least we can put it back.

Warning: while the below is not difficult, you need to be very careful and follow the instructions exactly as you are going into the file system of the iPhone. If you accidentally do something bad like deleting a folder, the result can be disastrous. You’ve been warned. 🙂

Originally found the info here:

  • SSH into your iphone (alternatively use iPhoneBrowser – my preference)
  • Go/Browse to /System/Library/CoreServices/
  • Download the file M68AP.plist
  • Open the file using a text editor or a plist editor (my preference is list free plist editor from iPodRobot)
  • Look for this section:


    In the lines below at this section, you should see many “key” entries. Add these two lines:


    (remove the space after the word “true”)

  • Save and upload the file to the same directory that it was originally in.
  • Go onto the iPhone and restart. You should see the battery % meter display on the top right corner of the screen.
  • Go to the application Settings -> General -> Usage and there will be a Battery Percentage toggle and you can use it to enable or disable battery percentage next to battery icon in top-right corner.
  • That’s what it looks like on the 3GS and now you have it!


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