How to restore factory settings on your LG Quantum C900?

If you have a LG Quantum C900, let’s study to make ours phone back to factory settings. In fact of matter,it can help solve a lot of knotty problems at some of the time, such as freezing, running slower than usual, behaving strange, responding to commands, especially from software
Information:

• The guide is compatible only with LG Quantum C900
       LG Quantum C900,also known as LG Pacific or LG C900 Optimus 7Q
• The procedure will wipe all your apps,data and settings,and please remember backup your important data
       It will not touch your SD cards,this,however,is only in theory.still don’t foget to backup it
• Please take out your SIM and SD card if possible

Detailed process:

• When your phone can boot into the system——
       1、Click the arrow button show in the top-right corner
       2、Click Settings      3、Click About phone      4、Click Reset you phone      5、Confirm reset your phone by click Yes
       6、Done
• When your phone cannot start successfully——
       1、Please power off your phone
       2、Remove the battery, take 10 seconds
       3、Replace the battery
       4、Please simultaneously holding and pressing down the Volume Up key, the Volume Down key and the Camera key, and holding and pressing down the Power button to boot your phone
       5、Please release the Power button only after the screen shows Cold Boot    
       6、Please release the Volume Up key, the Volume Down key and the Camera key after shows Welcome screen
       7、Done

Congratulations! we have done this procedure.now you can solving many software problems by yourself