# Why does my iPhone flash when I post to the SDMB?

**URL:** <https://boards.straightdope.com/t/why-does-my-iphone-flash-when-i-post-to-the-sdmb/986950>\
**Category:** Factual Questions\
**Created:** [July 12, 2023, 6:09pm UTC](https://boards.straightdope.com/t/why-does-my-iphone-flash-when-i-post-to-the-sdmb/986950 "2023-07-12T18:09:38Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Northern\_Piper](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/northern_piper/32/5304_2.png) [@Northern\_Piper](https://boards.straightdope.com/u/Northern_Piper)\
**Post date:** [July 12, 2023, 6:09pm UTC](https://boards.straightdope.com/t/why-does-my-iphone-flash-when-i-post-to-the-sdmb/986950/1 "2023-07-12T18:09:38Z")

</div>

Can’t remember when it started, but now when I post to a thread, or start a new thread, the display on my iPhone goes to the bottom of the thread and flashes the screen a couple of times.

Should I be worried? Why does it do this?