Have LG Tech. Supp. walk u threw it, or while booting up press and hold power button and volume button simultaneously, you will come to a list of options, highlight factory reset and follow instructions. If this is a stolen or you found this phone, you might want to return it. Even after factory reset you will need, email, full name etc. when reregistering it...hope this helps...
If you want to achieve more with your Android smart phone, you can act as the following steps to root your device.
Before rooting your Android smart phone, please:
1. Download CF-Root-SGS2_XW_INU_KL1-v5.0-CWM5.
2. Download Odin3v185.
Step 1: Download CF-Root-SGS2_XW_INU_KL1-v5.0-CWM5 and unzip it on your computer. Then press the "Volume Down" and "Home" buttons of your Android device at the same time for several seconds. So that your phone will be rebooted into "Download Mode".
Step 2. Connect your Android phone to computer via a USB cable. After that, extract Odin3v185 and check the "PDA" box. Double click the CF-Root-SGS2_XW_INU_KL1-v5.0-CWM5.tar, soon you can get a menu as shown.
In this step, please choose "Auto Reboot" and "F. Reset Time", then press the "Start" button to continue.
Step 3. Wait for a while. After getting a "Pass!" on your computer and "Turn off" on the Android phone, please disconnect your Android smart phone and computer.
Step 4. Press "Volume Up" and "Home" at the meantime to reboot your phone to the "Recovery Mode".
Step 5. Select "Wipe data/factory reset" and "Wipe Cache" step by step. At last, tap "Reboot System Now", your Android phone will be restarted at once.
You can work this Coolmuster Samsung Contacts Recovery software to restore lost contacts and text messages from your Android phone at will.
Simple Steps to Root Android Mobile Phone
Ol?!
Inicialmente, aconselho a reiniciar o dispositivo sem o cart?o SIM e sem o cart?o de mem?ria (se voc? o usar), voc? pode deix?-lo conectado ao carregador.
Em seguida, voc? pode verificar a configura??o da atualiza??o de software na conex?o Wi-Fi, acessando: Menu Configura??es Guia Geral Sobre o telefone Centro de atualiza??o de software Verifique agora se h? atualiza??es.
Se persistir, recomendamos que voc? restaure as configura??es de f?brica, lembrando que este procedimento apagar? os dados da mem?ria interna, sendo necess?rio fazer backup das informa??es (backup), para verificar o procedimento.
If you lost data from your android phone, you should check out the backups first, and then you shouldn't add more data to your phone after data loss, they can take up more space, the lost data will be overwritten. Try some recovery methods,
Recover Deleted Text Messages from Android
no root !
Can you retrieve deleted text messages on Android? Yeah, this video will show you the full guide for Android text message recovery. Don't hesitate and recover deleted text messages from Android 4.0, 4.1, 4.2, 4.4, 5.0, 5.1 and more versions right now!
Not only can you recover SMS messages from Android backup but also can recover Android SMS messages without backup. This video is showing you how to recover deleted sms messages on Android without root your phone.
Some common situations that lost text messages you can recover from:
1. accidentally deleted texts on your android phone
2. lost textmessages after Android 5.0 updated or other Android upgrade.
3. save text messages from water damaged, crashed, broken or smashed Android phone
4. Android deleted textmessages randomly by itself
5. Factory restore Android phone.
And more...
Watch this video and share it with your friends too so that they can also get their precious lost data back.