The Other YN-622C User Guide v.4.09
11/12/2014
Part III – C-TX Controller Page 43 of 64
C-TX CONTROLLER FEATURES
Update C-TX Firmware
Version History
1.00 Pre-release version.
1.01 01/07/14 First commercial release built in. Upgrade required only for pre-release testers.
1.02 11/07/14 Added YN560-TX proxy mode. Improved stability.
1.03 12/07/04 Made backlight/setting time longer. Changed Updater display to UP.
1.04 18/08/14 Improved stability and transmission range.
1.05 Fixed 7D HSS problem, and fixed 7D II E-TTL compatibility.
1.06 03/12/14 Improved power supply on some circuit boards. Corrected display errors.
1. Download and instal the Firmware Updater
• Do this once, unless the Updater itself is updated. It may be worth re-installing with the
current Updater to be sure.
• Updating requires a Windows computer (not an emulator).
• Go to product page http://www.hkyongnuo.com/e-detaily.php?ID=348
• Download YN_Trigger_Updater.zip
(It may be necessary to first turn off your malware filter.)
• Unzip YN_Trigger_Updater_Setup.exe.
• Run YN_Trigger_Updater_Setup.exe to install the driver and updater in your computer
C:\Program Files.
If there is a problem getting the driver installed in Win 8.1, download
https://dl.dropboxusercontent.com/u/63687922/YN_Trigger_Updater_Setup.zip
Unzip and run.
Or, go to your Program Files / Yongnuo Trigger Updater / Driver / dpinst_x64.exe
(or _x86.exe for 32-bit systems), and run it.
2. Download and Unzip - YN_622C-TX_FW_V 1.04.zip (or later)
The YN web page may not yet show the latest version. If not, use:
https://dl.dropboxusercontent.com/u/63687922/YN622C-TX_FW_V1.04.zip
• The expanded files include
YN622C-TX_FW_V1.04.dfu.
Changelog_CN.txt and Changelog_EN.txt – shows changes in the update.
3. Set C-TX to Upgrade Mode, and connect
• Turn off C-TX, then hold down [Mode] and turn the
C-TX on again. The firmware upgrade mode will show YN | 622 | 1.01 U P, where 1.01 is
the current version in the C-TX.
• Connect the C-TX to your Windows PC via a USB miniB cable (e.g. Canon camera cable).
4. Instal the Firmware in the C-TX
• Run YN_Trigger_Updater English from your computer’s Start menu. (CN or a language-
selectable version may be available.)
• Use "Browse..." to navigate to the required “.dfu” version, and open.
• Check that firmware version is as expected, then click "Update".
• The Updater will show e.g. “YN-622C Controller, Version 1.02 updated successfully”, and
the C-TX will reset automatically using the new version.
If an error is encountered, turn off the C-TX and try again. If installation fails a second time, re-
download the files.
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