20 Most Recent LG Optimus E400 1gb Black Unlocked Android V2.3.6 Wifi 800 Mhz Cpu Questions & Answers

All data will be lost! Remember to back up any important data before doing a hard reset. When the phone is turned off, press and hold the Home key + Volume down key + Power key for over 10 seconds. When the screen shows the LG logo, release the Power key. After the screen shows the hard reset screen, release the other keys. Leave your phone for at least a minute while it performs the hard reset, then your phone will be turned on.anothewr way is :reset phone to factory settings and erase all the data on your phone, touch Menu > Settings> Privacy > Factory data reset > Reset phone. 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 re-enter the same information that you did when you first started Android.

Perform a hard reset on the device, following these: http://www.hard-reset.com/lg-optimus-l3-e400-hard-reset.html That will erase all data and apps; including the virus.

1. With the device powered off, press and hold the Power key, the Home key, and the Volume UP keys simultaneously.
2. When the power turns on, release the keys.

Contacts and applications doen't get lost by themselves. You may have clicked the factory reset button. You may get back your contacts if you have added a google account to the fone. if you have enter the same google account and sync up the contact. Thanks

clean your mobile cache and use a taskiller app to turn off apps that are not in use it will free up RAM.

you can use app like app2sd. it will help you with your problem. Apps 2 SD Move app 2 sd Android Apps on Google Play

your card may not be large enough for the info you want to transfer..

Try removing your phones battery & put it back.

Try holding down the power and volume down buttons.

if the phone is old or has been dropped then it could be your mic that has broke. the speaker is at the top ( so you can hear ) mic is at the bottom ( so they can hear ) but if you know the phone is fine or was fine then you could of muted the call. dial out and keep the phone away from your ear so you can check the screen ( the screen turns off when you hold it to your ear ) then you can check for a mute button or secrecy button. ( we use them to put people on hold so they cant hear what we say )

Earphone output.?

You can unlock network lock of LG KE phones using unlock code..you can purchase such code from any vendors online like Mobile-unlocker.com

Not going to happen. You need to pay for that.