Black shadow top right corner

Backlight issues are rarely the backlight driver. The 6plus has two backlight circuits. One has failed, often it is one of the cathode filters that complete the return trip of the backlight line to the board. Definitely a job to outsource, but repairable.

I've seen this problem before and replacing just the backlight fixed it for me. It does require a little soldering to do though. Otherwise replacing the whole screen will fix it too, but will be more $$.

If you still have warranty on the phone, take it to the apple store and get it replaced free.

it sounds like the controller for the backlight (on the logic board) has gone bad. This basically means its unfixable. but you can always try a factory reset

I have same problem in my iPhone 6 Plus at top left corner any body can help me out???

I know this thread is old, but maybe my reply could still help someone, so I am adding it.

In my case, the upper right corner was dark after doing a screen replacement, and was due to missing electrical tape over 2 sets of soldered connections on the new screen. In my case, the new screen displayed properly until i closed it down into the casing, and would display properly again when I reopened the phone. I suspected crimped cables, but ultimately was able to rule it out and also rule out some other issues using my old screen (which functioned but had a dead band for touch).

Ultimately, I disassembled the new screen again and compared closely with the old, which is when I found the missing electrical tape. I guess this was causing a short but only once the screen was compressed by installing it into the rear casing. Transferring the two pieces of electrical tape solved the issue for me.

Try to update the software. I don't know the reason but that fixed my problem. Maybe it will fix yours too.

i cannot find c2020 on the iphone 6 plus schematics. Can someone telling me the value of this component as i accidentily knocked it off replacing my lcd now i have a partial dark spot on the lcd. Need to replace that part.

Any help would be appriciated.

thank you.

I had the same problem after replacement of backlight filter (FL2024) on iPhone 6. I cleaned the board with isopropylalcohol and make sure that the screen connector is properly connected that solved problem in my case. I hope that helps your too.

Could installing a defective screen and powering up the phone cause this?

A replacement screen would not light up at all... defective. The replacement for the replacement works fine but for the darkness in the upper right of the screen. Identical to the OP's picture. I'm pretty darn careful about disconnecting battery before pulling a screen, so I don't think that was the cause.

Anyway, thanks for reading.

Solved: if you have done the repair after disconnecting the battery and you still have a black corner then disconnect the battery once more slightly heat the board with hot air where the ic chips lay and your problem should be gone. Happened to me loads recently and this fixed everytime!

I had the same issue with my iPhone6 ... Warranty was going to expire in a week so I visited the Apple Store. They replaced the screen but the issue was not solved. So they just replaced the phone for me. Unfortunately this new one is having the same issue. This is the second iPhone6 replaced by Apple for me and also the display on the old one was replaced twice including this one. I am assuming this is an issue with the iPhone6 model in general. Mine is not very noticeable during normal use but during the night when everything is dark in the room I can see it on my phone at minimum brightness. I still have 3 days of AppleCare+ left. But I think I should keep this one since the next one might have the same issue and there probably wont be a solution for it.

Is this issue due to damage by the user or is it a software/hardware issues? I don't know much about technology but I take good care of my phone. The top right/right half of my screen has this black film over it. Restarting it seems to make it go away most of the time but it always comes back.

How much does it cost to repair it at the Apple Store?

I mean how much does it cost to fix the backlight shadow at the Apple Store for an iPhone 6s

I replaced a cracked screen & got the upper right corner shadow.. I followed the proper procedure that was given to me by a cell phone repairman that happens to be a friend of a friend.. I reconnected the cracked screen & no issue.. for me, I believe it’s the replacement although I’m not 100% sure.. will be getting my replacement replaced & see if it solves the issue.