Galaxy S7 variants in China are receiving the official Nougat update via OTA. The update seems to be released for users who have joined the Galaxy Beta program, it’s the 7th beta update rolling out in the country. The update carries build number G9350ZCU2ZQA4, bringing in multiple improvements and in over all firmware, stability improvements and improved Power saving Mode.
The update weighs about 213MB that is almost of same size as DPLT firmware released for European variants. The Nougat update was halted for testing as there were bugs on it, now the stable build is released for Public. If you own a Galaxy S7 Edge G9350 you are going to hear the G9350ZCU2ZQA4 OTA knock on your device anytime soon. You can also update your device via Kies as well, here is the guide to update Galaxy S7 on Nougat via Kies.
You can also check for the firmware update manually go to Settings >> About device >> Software updates. You’ll be notified if the new firmware is available for your device.