i did update to the latest without factory reset BUT i got the video recording issue again... so again i need to do a factory reset. 
could you make for Version WW-16.0631.1908.12 update please...rom update WW_ZS660KL_16.0622.1907.33
Remember, You're on your own from here. Follow the steps carefully, and patiently. If something breaks or blows up - You're on your own.
- This guide only applies to ASUS ROG II (SKU : ZS660KL)
* Ensure to log out from your Google Account Signed in on the device. If you forget this step, Later on, you'll be locked at first boot due to Google's FRP.
* Do not attempt this on x86/32bit operating systems. Some users have reported bricking issues due to RAW flasher not supporting 32bit Operating Systems.
* Download the WW (International ROM) file at the end of this post (This is if you're coming from CN Rom to International Rom)
* Extract all contents as is to your C: Drive
* (Refer to attached image for the file list)
* Connect the Phone to the PC in Fastboot Mode - Using the Black Type-C Port on the Side of the Device (Not the Charging port on the bottom)
https://drive.google.com/file/d/1eS8in5E_5KboRFa6mZZvkw0VtZoACPmO/view?fbclid=IwAR0YStZ160ny5bzMS_JwyCICvYSx1w63HtShUJHnvUCjdKu31vSEBF-QPc8[/URL]
Hi, i just flash WW ROM from this thread [GUIDE] [RAW Firmware] [RE-LOCK] Convert CN to->WW or WW to->CN Rom (28/08), i notice there's a new firmware release from asus official website here: Version WW-16.0631.1908.12rom update WW_ZS660KL_16.0622.1907.33
Remember, You're on your own from here. Follow the steps carefully, and patiently. If something breaks or blows up - You're on your own.
- This guide only applies to ASUS ROG II (SKU : ZS660KL)
* Ensure to log out from your Google Account Signed in on the device. If you forget this step, Later on, you'll be locked at first boot due to Google's FRP.
* Do not attempt this on x86/32bit operating systems. Some users have reported bricking issues due to RAW flasher not supporting 32bit Operating Systems.
* Download the WW (International ROM) file at the end of this post (This is if you're coming from CN Rom to International Rom)
* Extract all contents as is to your C: Drive
* (Refer to attached image for the file list)
* Connect the Phone to the PC in Fastboot Mode - Using the Black Type-C Port on the Side of the Device (Not the Charging port on the bottom)
https://drive.google.com/file/d/1eS8in5E_5KboRFa6mZZvkw0VtZoACPmO/view?fbclid=IwAR0YStZ160ny5bzMS_JwyCICvYSx1w63HtShUJHnvUCjdKu31vSEBF-QPc8[/URL]