Update failed for tencent WW version

Hi everyone
I have a tencent WW version and I got the latest WW firmware from Asus site.
I put it on root directory and restarted my phone but when the update pop up shows up and I touch it to update it says operation failed.
Please help.
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whats your current software installed number and whats the number of software you are trying to install
Current software is 17 and I want to install 18
@pasargad.yasser You first need to update to the latest Android 10 firmware version, then upgrade to A11 from there.
Thank you very much