canon 600d/t3i iso button malfucnction

[athulraj]

my canon 600d iso button not working..if I put mode into fully automatic mode it is always showing "this fuction is not available in this mode" it is showing contuinsly without pressing any button.....pls help
and my flash is not working

[kvbarkley]

In fully auto mode you cannot change the ISO. Try it in 'P' mode.

[Waddizzle]

Hmm.  Sounds like you have a stuck button, in the pressed position.  Somebody's not doing their job.  Does the button still "click" when you press it?  Check all of the button, too.

If all else fails, which it seems like it will, I would contact Canon Support.

[athulraj]

iso button is still clicking when I press

[Waddizzle]

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@athulraj wrote:
iso button is still clicking when I press

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As kvbarkkey noted, most settings are automatically set and not available for adjustment when the camera is in AUTO, green "A" mdoe.  I think you should contact Canon support.  There is little you can actually do about a bad button..