Congrats and you are very welcome.

Thanks to all of you for the likes and comments! I'm surprised by the number of views that this got. I'll have to do more flex cable videos in the future.

You're welcome. Glad I could help.

Very common mistake. Good to hear that you got it working.

Cool. Glad that you found this helpful.

+Leo A Noya gocellphonerepair.com/how-t/videos/iphone-4s-screen-replacement/

You are very welcome. Congrats.

Thank you very much for the video! Unfortunately, I have absolutely the same problem as Randy. I tried to reseat the cables 3 times and now I'm worried if the LCD flex cable could be damaged. What could I do to test it, whether it is ok or damaged and what sould I do if the cable is damaged? with kind regards Martin

Martin Drobek If the cable is damaged you will have to replace your screen unfortunately. In this video kzfaq.info/get/bejne/gMl6iJZnvd7do58.html I demonstrate how to use a test cable and see if you have a problem with your existing one before doing a full installation. If you have access to another 4 or 4S (the screens will plug in to test but are different for installing) you can temporarily connect it and see if your screen is actually the problem or not.

thank you very much for your help!

+Noob2Chicken Most likely the cable was not properly connected or it is defective. I'd try plugging it in again and if the problem repeates youve probably got a bad part. The logic board can cause this also but from what youve described thats probably not the source.

Was the screen repaired prior to the problem? Sometimes the coloring of the window is off a bit. You can sometimes go over it (on the inside) with a black Sharpie if it's too light.

Go Cell Phone Repair Turns out it was a bad supplier. Got the part from another and it works. Thanks

Sowrirajan Kalyanaraman Check the gold prongs. If they don't line up right there will be no sound.

Yes if the lock button is causing your problem then this should solve it.

Go Cell Phone Repair Okay thanks a lot mate.

Go Cell Phone Repair What screwdriver brand tool did you use?

Bryan Torres In this video I was using a Husky.

No Problem.

Yeah I have been meaning to do one for a while. Hopefully someone will bring in a broken one soon.

I hope someone does. My boyfriend's power button just stopped working, and we can't afford to take it to apple to fix it. I've fixed his cracked screen before, plenty of times. Seems like I have become the fix-it-all when it comes to iphones, and it's all thanx to people like you who take the time to teach us through youtube. Thank you.

As soon as I get a chance I'll make one. For short term I recommend enabling assistive touch if you haven't already.

+Jacek Blaszczyk The little flick on the power button have to point down

+Aldo Cordero Cárdenas You can replace the entire flex cable or the contact switch itself. Neither are fun but. Let me know if that answers your question. Google translate is not always 100% accurate.

Go Cell Phone Repair i understand you :) thanks man i dont speak very good english

The 4 is a little bit different. As soon as I get a chance I will make a video for it.

ok! when u make this video, tag me into.. ty friend! ;)

+Iftak Hussain Please see the link in video description.

I don't think that there is a proper name for it so some of us just call it a nipple.

Please see the video description.

Just normal

Can you link a photo so I can be sure that I know what you are referring to?

I worked out it was the front camera socket! Thanks for the reply though. If you don't mind me asking.. I managed to damage both: The front camera cable, and also the silent volume switch cable. The phone no longer turns on, do you think it's to do with one of these cables? They aren't necessary components though.. technically? Or could I have bugged something else also? I ordered new cables anyway, hoping it's just one of those cables. In a computer for example, you do not necessarily need a soundcard.. so I am just curious if 4S can actually work without some components.

As long as you didn't damage the lock button cable it should still power up. I'd try disconnecting the ones that you think are damaged and connect a power source to see if it boots the phone up.

I damaged both front camera and the silent switch cable. But I've managed to get the phone to boot, new cables are on the way, do you have videos to replace these two cables on your channel? In which order should I replace each cable?

No it should feel pretty close to the same as when the phone was new. Sometimes the button doesn't get aligned exactly where it should. You might try backing off the screws a bit and moving it around until it feels more comfortable.

For replacement absolutely. Until the board comes out the part is not accessible. Sometimes you can adjust the power button but this is rare and does not help the proximity sensor. If the black dot is missing or you can't click the button when exposed then you have to replace the entire flex.

+Matt Maybe. I'm not sure which phone you have but is there a reason that you don't want to just replace it with the OEM button?

It's for a custom project in which the phone's power button needs to be moved off the pcb.

Also its an optimus Android fuel

+Matthew Canedo Hey MatthewI missed you comment somehow. Did you get this resolved? Usually something not connected like an antenna cable is where I would start looking.

I'm in the East San Francisco Bay Area.

Hard to say for sure but I would start by disconnecting the new part and see if it does the same thing. Unplug the battery first of course and you can plug the phone into a power supply to turn it on once the power button flex is disconnected. If that works you probably have a defective part. Otherwise that can also indicate a software problem. This sometimes happens after the battery has been disconnected especially if your device is jailbroken.

Similar but a little bit different as far as the way the cable is situated near the earpiece. Easier in that respect but it includes the secondary mic on the iphone 4 flex cable which is kind of a pain to install. I will make a video for the 4 as soon as I get a chance.

thanks

+Jakub Doležal Could be a defective part but I'd start by checking here: kzfaq.info/get/bejne/kOCSrdF_x5PFiIE.html

+Go Cell Phone Repair Thank you. I tried connect the old proximity and it works fine. So I need buy a new one part.

Nah. As long as you set it back in place it should be fine. It's difficult to remove with the adhesive intact but as long as the foam cushion stuff is there it will seal well enough.

thanks u thats realy help me :)

+ImRemii haha solved it ._.

Wow that sounds like a bit much. We do them here for $79-most of that being the labor fee as there is considerable time involved. As for the big scheme of things.-understanding their design flaw we would hope that Apple decides to create a modular lock button rather than attaching it to the main flex cable or at least build a more durable switch. Then again this has been a problem since the iPhone 4 and continued up until the current model so I am skeptical about that idea.

Wish I could bring phone into you, but I'm in London! Will just have to continue using that irritating assistance button.