How to downgrade from10 to 9

[nawabganjalimma]

Please tell us some basic information before asking for help:
Model Name:
Firmware Version:
Rooted or not:
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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[Bhasky]

nawabganjalimmadrasha

Please tell us some basic information before asking for help:

1. Model Name:
2. Firmware Version:
3. Rooted or not:
4. Frequency of Occurrence:
5. APP Name & APP Version (If your issue relates to the app):

In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.

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How to downgrade from10 to 9

ASUS 6z