How to Jailbreak an LG Optimus Phone From T-Mobile

The LG Optimus T is an Android smartphone sold by T-Mobile. The Android equivalent to jailbreaking is called rooting. By default, the operating system prevents third-party programs from accessing the phone's root directory and making changes to system files. Some programs need access to these files to run properly. Rooting is also required to change the OS to a different ROM. You can root your Optimus T with a single click using a program called z4root.

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Instructions

- 1
  
  Press the menu button on the main screen of the Optimus T.
- 2
  
  Touch "Settings" and "Applications."
- 3
  
  Check the box labeled "Unknown sources." The Optimus T displays a cautionary message. Tap "OK" to accept.
- 4
  
  Press the home button to return to the main screen.
- 5
  
  Open the application screen and touch "Browser."
- 6
  
  Touch the address bar and type "xda-developers.com/android/get-froyo-root-with-z4root-app." Tap the "Application thread" link and the browser will load a forum thread.
- 7
  
  Touch the "z4root.1.3.0.apk" link at the bottom of the first post to download and install the z4root application.
- 8
  
  Press the home key and open the application screen.
- 9
  
  Touch "z4root" and tap "Root."