Grid lines in 18 pro max

The fact that you have an “Add” button and timeline/slider underneath the image is particularly useful—it indicates that this isn't simply the normal Photos viewer. The application is doing something to the image, and the fine grid appears to be part of that application's viewing/editing interface.

The screenshot contains:

Black UI area → photograph with grid → black UI area

The grid is confined to the photograph/displayed-image area. 

The absence of gridlines in the black areas strongly suggests that this is not a display-related issue. If the display itself were causing the pattern, the grid would typically be visible across the entire screen, including the black portions of the image.

To further investigate, please open the photo using the iOS Photos app and check whether the grid pattern is still visible when viewing the original image. If it only appears in certain apps or under specific viewing conditions, that would help determine whether the issue is related to the image itself, image processing, compression, or a third-party application rather than the display hardware.

Hi there

Please try this

• Pinch to zoom: Play an affected video in your Photos app and pinch to zoom in slightly. You will notice the grid lines instantly disappear or shift. If it were a broken screen, the lines would stay permanently in the exact same spot on your display. 
• Send the video: Share the video to a computer or another phone. The grid lines will not be there, proving the file itself isn't damaged; your phone is just caching the playback render incorrectly (especially in 4K or HDR formats). 

Yes, I can see the small gridlines in the image. However, these do not appear to be Apple's standard Camera Grid feature. The built-in Apple Camera grid is a much coarser 3×3 composition grid, designed to help with framing and alignment. What is visible in your image appears to be a much finer pattern, consisting of numerous small squares, which is not typical of the standard iPhone Camera app interface.

To better analyse what may be causing this phenomenon, could you please share the metadata of the photo or video? Information such as the device model, iOS version, camera settings, resolution, file format, whether the media was edited, and any EXIF metadata could provide valuable clues. If possible, sharing the original, unedited file would also help determine whether the grid pattern was introduced during image capture, post-processing, screen recording, display rendering, or by a third-party camera application.

With the metadata and original file details, we can perform a much more accurate analysis and narrow down the source of the issue.

You sell millions and millions of devices and there may be glitches that effect a small subset of users.

I’ve now seen several posts on social media platforms where the users slightly edited the video and the lines disappeared. Have you tried slightly adjusting the exposure value?

Replied similarly for iPhone 17. This is an issue that began after updating to IOS 27. Grid artifacts disappear with zooming in. Present in iPhone Photos and Synology Photos for video playback. Restarting the phone temporarily resolves this issue.

Green lines appear during video playback … - Apple Community

What happens if you just slightly edit the clip? Try lightening or darkening the clip slightly, forcing the clip to re-render.

have the same problem. I bought the 17 Pro Max, installed the latest version of iOS, transferred data from my iPhone 13, and when I go to the gallery, all my videos transferred from the iPhone 13 have stripes — when I zoom in, they become smaller, then larger, and sometimes it looks like a grid.

Update on the issue

• I replaced the phone from apple store
• Unfortunately same issues occured in second phone as well , crazy
• the same grid lines coming in new phone as well

what is happening with apple ?

yeah I tried and its going off , but what is the actual issue ? is it hardware issue or software issue ?

This video taken from this phone only and I took this screenshot from screen recording , FYI I just returned the phone and waiting for replacement

I opened from photos app only and took this screenshot from screen recording video

I’m trying to figure out what the problem is myself; my friends who have iOS 26.6 on their 17 Pro Max don’t have this issue.

even i also faced the same issue after updating to ios 27 , earlier it was not there in iphone 17 or 17 pro , my both the phones now have same issue, video recording from iphone native application .