If your device experiences issues or certain adjustments cannot be rectified, you can restore the manufacturer's data to return the device to its original state as it was when newly purchased.
Note: All data on the device (contacts, images, messages...) will be deleted.
To reset to factory settings on Asus Zenfone 3 ZE520KL, follow these steps:
Step 1: Access 'Settings'.

Access 'Settings'.
Step 2: Choose 'Backup & Reset'.

Choose 'Backup & Reset'.
Step 3: Choose 'Restore to factory settings'.

Select 'Restore to factory settings'.
Step 4: Opt for 'Reset device'.

Opt for 'Reset device'.
Step 5: Verify the code and select 'Erase everything'.

Verify the code and select 'Erase everything'.
Wishing you all success.
