how to hard reset lg mobile

1.Pwer Off The Phone First.

2.Press Volume Down And Home Keys Together Then Press The Power ON Button.
3.Press And Hold Down The Keys Until LG Logo Appear On Screen.
NOW Your Phone Will Reset

how to hard reset Samsung Galaxy i9001

first press power+volume up
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then press  option key
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then press .......

How To Hard Reset Your Samsung Galaxy Y Duos

* Switch Off Your Device 

* Take Out Your Sim And Memmory Card

* Press And Hold  Volume Up Key  +  Home Key    +  Then Power On Your Phone
* Hold Pressing Keys Untill The Second Logo Appears
* When Scond Logo . Release All Keys
* Then You Will Get Factory Reset Menu
* Select Wipe Data/ Factory Reset Option . Scroll Using Volume Key . Then Confirm
* By Select Yes Delete All User Data. Using Volume Down Key . Confirm It
* Wait Some Seconds. Then Select Reboot System Now Option And Confirm
* Now Your Phone Will Restarted. After Completing The Hard Reset Prosses
* Done ! 

Nokia 500 incoming call doesn`t appear on the screen - the light remains switched off? - On incoming call the screen stays black and it is impossible to see who is calling.
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