Yongnuo 600EX problem

Eagle Eye

EOS 80D
Jul 5, 2011
172
0
Virginia
Hi folks,

I picked up a Yongnuo 600EX-RT a few weeks ago. Great flash unit. The only issue I'm having is the settings not being retained when I turn the flash unit off and back on, even leaving the batteries in. All custom functions reset to factory default. I'm guessing it's a physical problem with some sort of built-in date battery, but I thought I'd post here just to be sure. Anyone have any guesses?
 
Oct 28, 2016
1
0
Strangely, I have the same problem except it's with a used 600EX-RT that I recently acquired. The custom functions get reset on power off (batteries still inside).
 

Alex_M

EOS RP
Oct 16, 2015
345
1
I would start with firmware update to see if that fixed the issue:

www.hkyongnuo.com/e-detaily.php?ID=351


Software& Firmware Update Guide:
http://yongnuo.com.cn/app/YN600EX-RT-Updater.zip

Firmware v1.9.0:
http://www.yongnuo.com.cn/app/YN600EX-RT FW V1.9.0.rar

Eagle Eye said:
Hi folks,

I picked up a Yongnuo 600EX-RT a few weeks ago. Great flash unit. The only issue I'm having is the settings not being retained when I turn the flash unit off and back on, even leaving the batteries in. All custom functions reset to factory default. I'm guessing it's a physical problem with some sort of built-in date battery, but I thought I'd post here just to be sure. Anyone have any guesses?