Samsung Galaxy S4 wound't start

[matthieusimon]

Hi there.
I got into a bad situation after reassembling my S4 with a new replacement screen.
I followed all the instructions in'n out. I double check everything, but when i try to power it up, it don't do anything. But when i connect it to the charging-cable it vibrates once every 22 seconds. It still wound't turn on, just keep vibrating every 22 seconds.

PLEASE HELP ME folks :frown:

 

[jspradling7]

Change the spark plugs. Kidding. : ) You need to take it back apart. A cable isn't all the way back in or something is being pinched. I use a wood toothpick to gently push the cables in good. If you used something sharp you may have cut one of the cables by accident.

 

[matthieusimon]

Are you saying that there might be a loose connection somewhere with the cables? And how am i supposed to push the cables in place with a small toothpick? I basically use a plastictool for releasing and getting the ribbons of each other.

 

[jspradling7]

On the phones I've worked on, the cables have little "tits" or "tabs" on the sides of the cables near the tip that slides into the female socket. So I gently get it started in with my fingers and then I use the tip of a wooden toothpick to push first on one side and then the other so that it sort of wiggles the cable fully into its socket. One time I damaged a cable because I used the tip of a tiny screw driver and it slipped. So I started being more careful and use a wood toothpick so as to not accidentally ruin a display unit.