Hello,

A few things I would try:

1) Did you remember to take the blue protective layer off the back of the replacement screen? Many people I see do not do so.

2) Insure the camera cap has not fallen out of it's camera hole during the install. If it has, it has likely fallen into the middle frame area.

3) This one is harder to explain. The logic board, has to fit snugly into the frame. On the left hand side, just below where the big "cable plate" for the lcd/touch/etc is located, these is a screw. Right below this screw is a small cutout for the pin of the logic board to be seated with. If you do not have this pin in the hole, rather resting on the logic board, you will likely see this affect.

If none of these work, perhaps you bought a low grade screen and the matrix is sloppy at best.

Hope this helps,

Xico Solutions

I don't know but did you remove the battery for replacing the dock connector?

If sou could it be possible that the force you used to remove it from the mid frame bended the mid frame towards the LCD? If that happens it could definitely cause this problem as the LCD is then much closer to the mid-frame (only has to be 0.5mm closer or so for this effect)

It's possible that there is a piece of glass behind the LCD. Small pieces are hard to see... Especially the clear pieces. A small sliver in the viewing area could cause the tightness that leads to your rainbow effect.

Did you put all the screws back where they belong? A screw going up against the back of the screen could do that too.. Although an unlikely scenario with this model.

Where is the discoloration occurring on the screen? Lower center, etc.?

Hello,

A quick question, and then a few things to try:

1) Does your screen sit flush with the phone? All the way around?

2) Take the top metal plate off the connectors, use your old screen and simply connect the two connectors. Do not install it, just use your board to boot up the LCD. Does it still rainbow when pressed?

3) Remove all screws from the left side of the logic board, including the battery screw. Your main board will stay in place by your sim card. Do you still get the rainbow?

4) boot you phone up without the back plate on, same issue?

Possible solutions:

1) If the above things do not fix the issue, I'd look at your battery and insure it is not bent or warped from being removed.

2) The battery has that little metal protector for the dock antenna connector. You are putting this below the actual battery connector, correct?

3) Take out your main board and screen, does the frame look straight?

4) Upload me pictures of the back of your phone with the cover off. I would like to see how you have it installed.

Hope something in this post helps,

Xico Solutions

Hi there, I had the same issue with the screens I first started replacing. I found the issue was very minor and was caused by not tightening the inside screws hard enough leaving the possibility of the screen being pushed in slighty and causing the rainbow marks, (I learnt holding down each edge where I screwed helped) another reason was forgetting to take the coloured strip over the digitizer off, this can also cause the funny colouring under the screen. I wouldnt say it helps to take the phone apart and tighten the screws because the more you actually play around with a screen the worse it gets but depending how bad the situation it may actually be worth a try. Just keep this in mind though if your thinking of changing the screen again.

Jaz :)

From my experience its usually the battery causing it. When you remove it with a pry tool (since the pull tab is usually useless, I always use a pry tool.)

The pry tool can sometimes put a tiny lip on the battery towards the rear of the battery causing more pressure against the mid plate.

I always beat it flat before inserting the battery again. Took me a while to figure this out as you wouldn't believe how small the deformation has to be to cause a pressure mark.