https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-580EX-II-screen-will-not-stay-on-and-doesn-t-start-up/m-p/578497#M5868 <P>Are you using know good high quality AA Alkaline Batteries. Lithium Batteries get hot very quickly.</P> Thu, 11 Dec 2025 23:14:33 GMT deebatman316 2025-12-11T23:14:33Z https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-580EX-II-screen-will-not-stay-on-and-doesn-t-start-up/m-p/578482#M5867 <P>Am looking for some help here with my Speedlite - When I switch on the screen comes on for a fraction of a second and does not start up. I've looked at the contacts and they do look ok as there's no corrision appearing. It's the same when I pust the pilot light - a brief flimpse of the screen and then it's gone.&nbsp;</P> <P>Thanks mill</P> Thu, 11 Dec 2025 21:26:47 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-580EX-II-screen-will-not-stay-on-and-doesn-t-start-up/m-p/578482#M5867 Dermot 2025-12-11T21:26:47Z https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-580EX-II-screen-will-not-stay-on-and-doesn-t-start-up/m-p/578497#M5868 <P>Are you using know good high quality AA Alkaline Batteries. Lithium Batteries get hot very quickly.</P> Thu, 11 Dec 2025 23:14:33 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-580EX-II-screen-will-not-stay-on-and-doesn-t-start-up/m-p/578497#M5868 deebatman316 2025-12-11T23:14:33Z