5D is non-responsive - help please

<p>Here's what I know:</p>

<p>My primary 5D died during a wedding (the dinner, thankfully, so I moved to my backup) last week. No response to AF button (set custom to the * button), to shutter button, no LCD in viewfinder, but top LCD still worked. Relative response to AF/WB, Drive, and metering buttons, but absolutely nothing on Menu, Info, or other back buttons.<br>

Camera is receiving power.<br>

Shooting with 24-70mm 2.8 L and a BG-4 battery grip on it, with two BP-111s.<br>

Pulled the batteries, let it idle, and reinstalled - nothing. No change. Still reponds marginally to top control buttons, but can't use control dial to make selections.<br>

The backlight button will not work at all.</p>

<p>Ok, so it was JUST receiving power a minute ago as I was typing this, and now it's doing absolutely nothing. Total brick. My mind went first to thinking that something is sucking down power at a tremendous rate; no blinking "low batt" indicator. It was on one second, and now it's completely dead.<br>

Thoughts? Anyone seen this before? No sudden jarring or trauma to the rig just prior to it going kaput. It was fine one moment, then not.</p>

<p>Oh - only thing I could think of that was marginally out of the ordinary was that I powered it up, opened the card bay, pulled the card, turned it off, THEN shut the card bay (I have no idea why I did it like this, I just remember in my panic of "WHAT JUST HAPPENED?!?" I thought of the card door sequence. Almost never pull a card while it's under power. Could that be it?) Incidentally, that card and all images on it are fine.</p>

<p>Please help - I appreciate your time and insight. <br>

-Mike</p>

<p>Recharged battery partially, and power's back on. WB can change. AF can change. Drive & ISO, as well. on "M" all that shows is shutter speed, and it won't change. Same on Tv. On Av, neither shutter speed nor aperture is shown. on "P," the same. Focusing point button works. <br /> <br /> Grip and main power are both set to "on."</p>

<p>Thanks in advance for help.</p>

<p>Here's what I would do start the elimination of causes:<br>

Take off your battery grip and try the camera without it.<br>

In addition to the primary battery, take the seconday battery out as well and let the camera sit for 10 minutes, then put both batteries back in and see what happens<br>

Make sure the lens contacts are clean.</p>

<p>If none of these help, call Canon.</p>

<p>These kinds of things can happen if batteries are very low, but also when they are starting to fail. Try the camera with some other batteries and as Juergen says.</p>

<p>yes the batteries have done this to me, as well as bad contact dirt on lens but mostly the batteries particularly if they are not canon batteries they show a charge bar then bang you have nothing, try a fresh canon batterrie if possible, if not head to the nearest canon store if you can and try their batteries, wal mart does sell the bp511a for about 65 bucks.</p>

<p>Have you tried AA batteries in the BG-E4's separate magazine to see if your camera works? If that solves the problem, your BP-511's are probably toast. Time to search for third party batteries recommended by other Photo.neter's.</p>

<p>Do open the chamber and take a look at your shutter...</p>

<p>Or if the mirror hasn`t dislodged...</p>

<p>My 40D did this, turned out being the battery grip.<br>

Take battery grip off & insert a new (not out of grip) battery & see how you go, if still no response I'd be checking for dust or dislodged mirror that may be jamming the mechanics...</p>

<p>Good luck! :)</p>

<p>Pulled the grip this morning and put it into my secondary camera, and that camera - with grip and one of the batteries from the night the first rig went bad -- worked just fine.</p>

<p>Put another battery into the original bad rig, sans battery grip, and closed it up with a 511 and battery compartment cover swapped out from the 2nd rig. Turned it on, and all symptoms are the same. Drawing power, but whole rig is wonky. Would I / should I be looking at the battery contacts on up inside the compartment? The mirror is down, not jammed/stuck.</p>

<p>Thoughts?<br>

-Mike</p>