User Activity

Hi all, I got a SPEEDLITE 600EX II-RT.  Today, when I take it out.  (I have batteries already installed).  I notices my LCD screen have a ORANGE GLOW even my Flashlight is "OFF".  I turned it on, and it looked like it stuck in Wireless mode.  I try t...
Hi all, I am new here.  I got a Canon 5D Mark IV.  Today, I try to use my Flash, as soon as I plug my Flash into the Camera body,  I get "FEL"  and  I got a Lightning Bolt with a star on the corner.  And it lock out my camera, I can't get it off.  Ca...