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Bericht: Antwoord op "Front camera not working after screen swap"
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Kiezers: oldturkey03 (Door beheerder besloten)

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Front camera not working after screen swap

Hi there, I am hoping someone can help me out with an issue i have encountered about 3 times in the last 10 screen changes.

All goes well and i reassemble the new digitizer/lcd etc and all is flush. When i test the camera it functions normally , that is the rear camera takes pictures and video no problems, But.. the minute i touch the switch camera icon, top right, so that the front facing camera is in use it freezes the camera and the only way out of this is to go to settings/general/reset all settings.

I do not believe i have damged the front camera during installation, as i say, i have done quite a few by now, so what else could be causing this? What does the little spring do next to the rear camera? is the camera shield plate that sticks to the back of the digitizer really neccessary? does it creat a circuit somehow?

Hope someone can help or at least test this after an install to see if they come across the same issue.

I should add, I make sure that i reinstall everything exactly the same as it was. The only thing i normally leave off is the copper binding around the digitizer connector (but i tested that as well without success)

Thanks

David

Update

Well, Since i posted this first message I have not had any more with this issue.

The solution seems to be changing the cameras where need be.

My idea of the cuase is that during the installation process, the on/off button is getting pressed and switching the unit on. Obviously you won't see this as the screen is off so you wouldn't know it. If this is the case then connecting the new lcd in this state may be frying the camera or it could even be a result of shorting the back plate of the camera against something live.

Anyway, thats the only thing i can think of as like everyone else, i ame xtremely careful when prying up the board to remove the digitizer clip.


Antwoord

@dh721 above asked about the solution at this link:

http://www.gsmindia.in/forum/apple-iphon...

I had an iPhone 4 (Model A1332) that I did a screen swap on and when I tried to switch to the front camera it would freeze on the shutter. I tried the reset solution – nothing! I bought a $0.99 camera application and the App would freeze when I tried to switch to the front camera (i.e., it was a hardware issue not a software issue). I went to the above link and then cracked open an iPhone 4 with a working camera and the iPhone 4 with the bad front camera. The pics are below – clearly there was a small jumper that snapped off. It seems that snapping this off is at greatest risk when the Headphone jack/volume button cable connector is pried off – you can even see the jumper in the iPhone 4 iFixIt Guide just above the connector (yellow box).

It is next to impossible to try to drop a little solder across these two points. This is what they recommend on the above website

Caig CW100P Circuit Writer Conductive Ink Pen

Caig also makes a sealer:

Caig CircuitSealer Conformal Coating Pen, 100%, acrylic-based

I have ordered this Circuit Writer Pen … will update this post to see if I can fix it!

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