[CEWren]

My YN560 will not operate on my K5. It flashes once, but wont flash again after that, and actually wont turn off after that either (the speedlight). I have to physically take the batteries out to get it to turn off at that point. However if I use a wireless flash trigger with the same camera and flash the flash operates flawlessly.

An online fellow pentax friend of mine has the same camera, same flash and has no issues operating the units with the flash on camera, and I had no issues with the YN560 on my Kx (same flash unit). But what confuses me is if it is the camera that has a hotshoe issue why would it operate fine with the remote wireless flash trigger? I need my camera for upcoming shoots but suppose I should really get it checked out by pentax before my year warranty runs out on it but figured I would check to see if anyone here had any input before I call Pentax. Any input is appreciated.

[joe.penn]

Carrie, I use the YN-560's with my K5 and Kx with no problems, I have 3 of the 560's and have not had any problems with them. I mostly fire them using wireless triggers but have had all three fired from the hotshoe of the K5 and Kx (2 different Kx's at that) and have had no problems. Have you tried in different camera modes? Also, do you still have the Kx - you can use that to see if the flash fails on it also...

[CEWren]

Yes I do Joe still have the Kx and yes it does still work correctly on the kx

[Andrew Lang]

update firmware... that fixed the problem for me

[CEWren]

hm, I did two months ago, but will try that again! Thanks Andrew!

[joe.penn]

Carrie - I know this is a dumb question but just to make sure, you are "holding" the power off button on the flash for "3 seconds" to power it down/turn it off correct?

After much thought, this is a pretty strange issue. If the flash works perfectly on the Kx, it should work as flawless on the K5 as it is a fully manual flash and only utilizes the simple and most basic flash firing circuitry. Let us know if you solve the issue...

[sterretje]

Do a search on the forum for k5 yn560

https://www.pentaxforums.com/forums/pentax-k-5-forum/162331-mounted-yn-560-flash-problem.html

[CEWren]

lol, yes Joe. I turn it on just fine

Yes, it is a crazy weird problem. And what boggles me is that the remote wireless flash trigger works just fine mounted in the hotshoe, and the YN560 does flash once when mounted in the hotshoe every single time.

thanks sterretje. Did not even know yn560 had a forum. Will check that out now!

[sterretje]

As you might have figured out by now, it's just a thread on PentaxForums

[CEWren]

lol, yes, I felt silly as I hit the post and realized it was pentax forum