Released on September 19, 2014, this 4.7" screen iPhone is the smaller version of the iPhone 6 Plus.

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Phone not turning on after screen replacement

Hello, in fact i didnt replace de screen i just take it off to see the wifi anttena which i was planing to replace. when i was removing the screen, in the last cable, the metal cover on top of the conector fell off it was the bare conector without the metal cover but i managed to disconect the cable without any damage (i didnt see any sign of damage) so i proceeded to conect the other flexes and then i turn the phone on for a test and it started but it had like a bad response on the touch so i turned the phone off and reconected the screen again it worked without any problem but when i turned the phone off to put the metal cover of the screen conectors i messed up a little, i put the left screw where the middle one goes and viceversa (not so tight but still) and then i closed the phone and it didnt turned on at all so i rechecked and everything was conected but it didnt turn on. I started looking in this forums and they said disconecting the batery and pressing the power button to release energy then turning on but nothing works! also tried the hard reset (with the two buttons) but nothing at all.

at first the phone was vibrating every couple seconds and was recognized by itunes but now in the morning it wont even vibrate, any help guys? thanks!

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Make sure that your connections are tight and all connected properly. A good practice is to make sure the battery is disconnected before tampering with any other components or cables in the device. With the phone vibrating it sounds like the phone is powering on and functioning, but the display is having issues actually displaying anything. If all your connections are good and there has been no damage to the connections on the logic board, first try to connect them without the metal piece, and check if the issue relates to that, otherwise I would look into replacing the display first then if that doesn't solve your issues you would be looking at a logic board replacement due to issues/damage to the display connectors.

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Looks like all the conectors are intact, it just vibrates.. they are all thight

what happens if you remove the screen with the battery conected?

Guess im gonna try antoher screen and let you know thanks!

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Yeah give that a shot and see what happens. hopefully a screen replacement will resolve the issue, as it's a cheaper option that your other choices.

If you remove or tamer with any components while the battery is connected there is always the chance of power still running through the device. This is a problem because the device or components could react when static electricity touches them or parts unintentionally touch together to cause power to flow to different parts of the device and cause damage. It's not super common to run into issues, but it's much better to be safe than sorry. Also if you want to be extra cautious make sure to disconnect the battery and leave the device untouched for a small amount of time to allow any excess charge to be dispersed, and if you intend to do a larger amount of repairs and whatnot then having a ESD (Electro-static-discharge) mat and wristband can help a lot!

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The symptom of the phone vibrating every 5-7 seconds is typically the phones way of telling you that there is a problem with the digitizer/lcd. I would say to recheck your connections at the motherboard and make sure that everything is exactly the way it should be. If you still have problems, it is probably relating to the metal part of the connector that you said had come off. It probably damaged the connector.

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The conectors look fine is it posible that the cable itself is failing? or it has a conductor inside thats ripped? (that i cant see)

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possibly a conductor that you can't see. If you have another screen to test it with you will most likely find the issue.

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