• The Canon Rumors Forum has officially been shut down as of July 10, 2026.

    All data will be deleted on September 16, 2026.

    the ad free experience will return by July 17, 2026.

Yongnuo 600EX problem

Eagle Eye

Canon Rumors Premium
Jul 5, 2011
194
65
6,463
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?
 
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?
 
Upvote 0