HT1430 my iphone 4 stopped working suddenly....i held the on button and the home button at the same time and it cam on...is this a fault as i cant have my phone switching off randomly?

my iphone 4 stopped working suddenly....it wouldnt charge or anything...i was told to push the on button and the home button at the same time and it came back on.
is this a fault with the iphone????
i cant have my phone switching off randomly...any help please...thankyou.

sometimes it happens, a hard reset will sometimes solve the issue.
If the issue starts happening more often, I would consider restoring the device to factory settings to install clean software. If the issue still persists after that, the device might need a hardware repair.
More info on backing up and restoring the software: http://support.apple.com/kb/HT4137
Good luck
Stijn

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