How to downgrade to android 9

[zunaid95]

Please tell us some basic information before asking for help:
Model Name:Max Pro M1 3gb
Firmware Version:. 429
Rooted or not: No
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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I am on android 10 beta 3. But I know that they will not give stable android 10 so only option is to downgrade to android 9. So please tell me can I downgrade from buggy beta 10 to stable 9? nd how?

[victor010]

Hi there, you may click on the following link to downgrade, kindly download the Version MaxProM1_downgrade_to_9 . Request you to read the instructions before downgrading and take a full backup of the device before. Click here: https://www.asus.com/in/Phone/ZenFone-Max-Pro-M1-ZB601KL/HelpDesk_BIOS/