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How to fix SN X00TD ? (my SN now "C4ATAS000000")

Star I
Please tell us some basic information before asking for help:
Model Name:x00td
Firmware Version: Androi 11 (pixelexperience)
Rooted or not:root
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.


Community Legend II
Hi raganata09
Thank you for your asking. The wrong SN can be caused by custom ROM, Android 11, which ZenFone Max Pro (M1) officially does not support. You may try to perform Factory Reset: Settings>System>Advanced>Reset options>Erase all data(factory reset)
**Please note that once the Factory Reset is completed, all data, apps, settings and personal information will be deleted.
[Phone] How to back up the data stored in your phone ? | Official Support | ASUS Global
Furthermore, please note that unlocking the device or flashing the custom ROM are quite risky, may causing security issues like Widevine Issue, banking app usage issue, or unexpected software issues permanently.