Chosen Solution
Hi I’ve replaced the screen on a friends iPhone 4 and it wont boot, everything is plugged in properly all screws are in their proper places, I just took it apart AGAIN, and there is a small metal bracket loose in there.. Does anybody know where this should go (its from under the metal casing over the screen, headphone/sleep wake ribbon connectors).. Link below to photo.. Cheers, Chris the bit at the bottom of the pic
That metal piece is a ground for your signal it must be reinstalled on top of emi shield before reassembly.
