Question about AT&T LG CU720 Cell Phone - Silver

1 Answer

HOW DO I HARD RESET MY PHONE - AT&T LG CU720 Cell Phone - Silver

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

To perform a Master Reset

  1. This will clear out user settings, profiles, etc from the phone. (This will delete all user files. Backup anything you want to save to another device. SD card, laptop, Dropbox.. etc.)
  2. Go to the Main Menu
  3. Select Settings
  4. Select Reset Settings
  5. Select Master Reset
  6. A prompt All settings reset to default. Continue? will come up
  7. Scroll to Yes then press OK
  8. Enter 0000 for the Security Code then press OK
    Note that if the default Security Code has been changed, enter the new code.
  9. The Resetting Progress will go through to 100% and the phone will be Master Reset
  10. You will then begin setting-up your device again.. email, preferences, apps.. etc.

Posted on May 07, 2014


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

Bought a zte boost max from a person .took it to boost to switch my boost phone to zte and representative acidentially reset phone so now it says need old email address and passwordany way to fix

How to Hard Reset Boost Mobile ZTE MAX 9520 ... - YouTube

? 1:40
May 17, 2014 - Uploaded by HARD RESET KING
Reset Hard Reset for ZTE ZMAX Locked with Google, Screen pattern or PIN - Duration: 1:59. by Klavdio ...

ZTE Boost Max - how to hard reset my phone -
Hard Reset ZTE Boost Max. First method: Turn off your phone. Format ZTE Boost Max; Press and hold Volume Up + Power at the same time for a few seconds.

How to: Factory Reset a BoostMobile ZTE Phone ...

Jan 05, 2016 | ZTE Cell Phones

1 Answer

Nokia 9130 blank screen why

Hard reset Nokia Lumia 925 using this handy guide and you will return your Lumia 925 back to its original factory settings. To hard reset Lumia 925, simply follow our simple steps below or follow along with this how-to video.

What will a hard reset do to my phone? Hard reset will restore your smartphone to its basic factory settings. It will:

* Erase all user data
* Erase all firmware settings
* Erase all applications installed by user
* Erase the content in internal storage

Reasons why you might need to hard reset Nokia Lumia 925 phone?

* Reset and disable Screen lock
* Might resolve freezing issues
* Might resolve slow problem with no or slow response of your phone
* Might resolve unexpected Application crashes
* Wipes personal data phone before you sell your phone or after you buy one How To Hard Reset Nokia Lumia 925 ResetHard com

Oct 28, 2015 | Nokia Cell Phones

1 Answer

How android phone hard reset

You can hard reset a couple of ways:
1 -- shut down the phone and pull the battery. 2 -- If the phone will not shut down, pull the battery. 3 -- Go into the settings menu for your phone and reset to factory defaults. NOTE: You will need to re-configure your phone after doing this!!!

Dec 03, 2011 | Cell Phones

1 Answer


Try doing a hard reset for the phone and then see if the phone works. A hard reset will ensure that the phone memory is formatted and all the factory settings are restored but doing a hard reset will delete all the files. To perform a Hard reset on the phone, Locate the following keys (* , 3 and talk/green key). Press all the above keys along with Power button and keep it pressed till Nokia booting screen appears. After hard reset, see if the phone is able to boot or not.


Oct 18, 2011 | Nokia E52 Smartphone

2 Answers

How to hard reset nokia 5130

You can reset it using a soft or hard reset. The following instructions provide you with information on how to reset the Nokia 5130 using both methods.
  • Soft Reset
The soft reset is often the better option if you are worried about losing data. There is a chance the soft reset will also default to the factory settings, but there is a bigger chance that it will not. With a soft reset you will enter in *#7380#. This tends to clear any pending errors and on most phones it will help your phone work properly.
  • Hard Reset
  • The code for Hard Reset is *#7370#. Enter these digits into the phone and press yes to confirm. This will start the initialization process. Make certain you have already saved all important data. You do not want to lose your contacts, memo, or other information due to a hard reset. You may have issues with a Nokia phone that is not turned on. If there are problems such as these you can try hitting three buttons simultaneously. Hit the +*+3. If you can hit these three buttons all at once you may be able to get the phone to turn on, and then you can go through the hard reset with the proper codes.
These codes work with all of the Nokia models including the 5130. You may find other options do exist such as the power button while pressing the space key and delete key, and caps/ shift button will also hard reset the phone.
It all depends on whether or not the *# keys work. Sometimes they won't work if the phone is in phone lock or key pad lock and you need to get it open first.

Oct 02, 2011 | Nokia 5130 Cellular Phone

1 Answer

I can't unlock my htc-hd2 phone it always ask me the passoword is incorrect. pls help me how to re-open my phone.

I'm sorry, but I think you will need to contact T-Mobile for support. Call them from another phone at 1-800-T-Mobile.
If you don't care much about the info on the phone, then do a hard reset to factory defaults.


Good Luck,

May 15, 2011 | HTC HD2 Smartphone

3 Answers

Any one knows how to format phone memory of 7210 supernova

There are two types of reset Soft and Hard reset.Soft reset restores only settings whereas hard reset resets entire phone memory
For soft reset *#7780#
For Hard reset

Oct 27, 2010 | Nokia 7210

1 Answer

How do i reformat my 6303 classic? It always hung everytime i useD it? So i hope you help me to fix it.tnx godblesS

There are two ways to reformat your phone. One is soft reset and the other one is hard reset. Soft reset resets the phone and quick format the phone memory. Hard reset completely wipes the phone memory and automatically reinstall the phone's firmware. So if your phone has a many problems, i would recommend doing a hard reset.

To hard reset the phone, switch off your phone. Then press and hold "green call key, * and 3" together and switch on your mobile. Don't release these three buttons untill you see the nokia hand shake. After that release the buttons and your phone is reset.

To soft reset. Dial *#7370#. Then enter the security code (default is 12345). That's all.

Hope it helps. Please rate the answer. Thanks for using FixYa.

Aug 26, 2010 | Cell Phones

2 Answers

I forgot my security code in my phone to access it so how to operate it

Dear you should reset your phone hard bcaz if u try to soft-reset,code will be ask to do reset So u have to do a hard reset of your phone.

Dec 04, 2009 | Nokia 5310 Cellular Phone

Not finding what you are looking for?
AT&T LG CU720 Cell Phone - Silver Logo

51 people viewed this question

Ask a Question

Usually answered in minutes!

Top AT&T Cell Phones Experts

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

William Alequin

Level 3 Expert

928 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you an AT&T Cell Phone Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides