I need help ive got a LG optimus g540 mobile phone i bought today.... and sometime when it turns on the screen just stays black the buttons light up and od times it starts up then just goes black... when i touch the black screen i can hear the buttons... i aint got insurance but it was like this when i got it

sounds like you have a usb cable for charging only.You need a "2 way " usb cable,the kind used to transfer music and pictures to and from phone to computer.These one way cables are usually used in mobile chargering,as you don`t need to transfer things,just charge.Or you got wrong cable for your phone.

First, make sure if this problem appear after you install any APP, if so you can try to brush system to fix it.
Else maybe the following cases:

1, mobile phone motherboard leakage lead the current too large.
2, The inside circuit protection of the lithium battery is too sensitive, so it power off when circuit is large.
3, the battery itself is aging.
4, Battery contacts are dirt-bit, causing bad power supply.
5, The engagement between the battery and the phone is easy to loose bits.
Of course, don't forget to see if the power button is back to its own place

Have you tried going into your Mobile Networks and Network Operators settings? In the Mobile Networks settings, you should find "Network Mode". Check to make sure that is in "GSM/WCDMA (auto mode)" If that doesn't work, try clicking the "Network Operators" in the same settings group and then hit "Search networks".

Yes there is hope You will need to flash over your phone try youtube or contact me if you need more help i will help you for a small fee.

my lg optimus swift is not working correctly. when i turn on the phone, sometimes it displays this sorry! the application Android Phone (process com.android.phone) has stopped unexpectedly. And it not receiving or sending any calls with the signal only dropping.

Hi,
It's prety simple to unlock LG Optimus Black Smart phones, first you need to know which network provider you bought that phones then you asking them how to get LG Optimus Black Unlock Code. Usually they will asking you about your phone invoice data to make sure you bought that phones from them and you must prepared some administration process. But if you want save more times, you can bought LG Unlock Codes directly from third parties websites and you will get instant unlock code in a couple of minutes.

Reboot your phone. If the problem persists then the pixels on your LCD have been frozen. You will need to contact the store you bought it from.

my new lg optimus one p500 is having a dust inside the screen..
within 15 days of purchasing the cell phone the dust is getting increase day by day.....after cleaning the dust from authorised service center its coming again on the screen.........ohhh ghoosh.. im fed up wth this new lg phone (lg optimus android 2.2 froyo.based) lgp500.

ur battery is dead!!! even if u have a new phone......just plug in ur phone and take out ur battery and if it still duz it that means u killed the battery.i hope this helps a little......info by MR.GIZMO

hang problem