Chosen Solution

Hi Today my iphone 4 stoped displaying with blue vertical lines and completely dark screen. Able to touch slide to attend calls. Able to hear ipod songs with earphones. Tried following:

  1. Restarted
  2. Reset Please help

Hi, You can try to open it and re-connect the LCD flex cable, but I think that it is for replace. :-( Use this manual: iPhone 4 (GSM/AT&T) Screen Replacement but after disconnecting the battery go directly to step 13, 14 and in step 17 you will see the connector of the LCD and the digitizer. Reconnect both of them. Regards