Hard reset LG Optimus 2X P990 full reset

WARNING: All of your data will be lost!

If it does not restore to the original condition, use Hard Reset (Factory Reset) to initialise your phone.
When the phone is turned off, press and hold the Power + Volume down keys at the same time (for over ten seconds), the
phone will turn on and perform factory reset immediately.
Please note, after you perform Hard Reset, all your data and applications on your phone will be erased. This cannot be reversed.

2nd method: When the phone is turned off, press and hold the Power + Volume down + HOME keys at the same time.

LG Optimus 2X P990 hard reset

If you perform Hard Reset, all user applications, user
data and DRM license will be deleted. Please remember to
back up any important data before performing a Hard Reset.

If you select Factory data reset, it will erase all of your personal data from internal phone storage, including information about
your Google account, any other accounts, your system/application data and settings as well as any downloaded applications and DRM license.
Resetting the phone does not erase any system software updates you have downloaded or any files on your microSD card, such as music
or photos. If you reset the phone in this way, you are prompted to reenter the same information as when you first started Android.

If you can’t recall your LG Optimus 2X P990 unlock pattern, PIN or password:
If you have tried to log on to your Google account on the phone and failed to use correct pattern five times, tab the Forgot pattern
button. You will then be required to sign in with your Google account to unlock your phone.
If you haven’t created a Google account on the phone or you forgot it, you need to perform a factory reset.

General advice: Before you buy a new cell phone or new tablet, please try the following procedure to repair your device in a software way. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before doing factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.! Please also note, that a hard reset operation will not unlock your mobile phone's SIM lock or network lock, but it will remove the unlock pattern, remove the user password or PIN password (NOT the SIM card's 4 digit PIN code). Also note that the firmware version will not be affected in any way, it will not be downgraded, it will remain the same you are using and if you have rooted your device, root privileges remain also unaffected.