Hello there, I really don't know where to start. Let me just describe my problems per unique incident or point:
* Turning on my K-3 and the AF540FGZ II, when making a shot, the flash does not fire.
* PTTL sometimes is not working. It flashes in full even when set to PTTL.
* Normally, the LCD backlight of the flash would be temporarily off which goes the same as the LCD of the camera when pressing the shutter button half-way. But lately, sometimes it doesn't. Like it doesn't detect the camera or doesn't detect the metering or anything.
* Sometimes, I only have to wait for a few minutes for the flash to start working properly again. Sometimes longer. Sometimes, I have to restart both the flash and the camera for it to work. A lot of times, even restarting doesn't help.
* Most of the time, PTTL just won't take any reading or anything. When I set the flash head back to its normal position (i.e., not set to bounce), I still don't get any reading. Then eventually, sometimes it suddenly works. And then stops again.
* I tried turning off both. Then turn on the flash first and then the camera. Or turn on the camera first before turning on the flash. Both cases do not seem to solve the problem.
* Sometimes PTTL works, but in some cases, the zoom seems to be having problems: it is locked at "10.7-infinity" no matter how close or how far my subject is. Manual zooming works, but when set to automatic, it defaults to that value.
* I haven't encountered these problems before. And I know how to use the flash.
* Batteries are all properly charged.
* I've checked all my settings and I don't see anything wrong.
* I suspect this has something to do with the firmware of the camera? Or the metal contacts gone wrong? Or anything? I really don't know.
Please help. Thank you!
Last edited by bebotette; 10-06-2015 at 02:22 AM.