My screen has turned to blurred lines going up and down the page. What do I do?

The screen of my Iphone 4 has turned to lines and you can't see anything but the lines. You can use the phone by touching the screen in the right places.
Would like some advice on what to do please.
Thanks

Fraser34 wrote:
The screen of my Iphone 4 has turned to lines ...
Would like some advice on what to do please.
The Basic Troubleshooting Steps are:
Restart... Reset... Restore from Backup...  Restore as New...
Restart / Reset  >  http://support.apple.com/kb/ht1430
Backing up, Updating and Restoring >  http://support.apple.com/kb/HT1414
If you try all these Steps and you still have issues... Then a Visit to an Apple Store or AASP (Authorized Apple Service Provider) is the Next Step... Be sure to make an appointment first..

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