If we detected an unusual login attempt to your
account, for security concerns, account deletion
/changing phone number/managing device will
be forbidden.
Note:
To change your trusted device:
Please enter Settings on your profile page
-[Manage devices]
-Tap on the new device
-Set it as Trusted Device
Imo verification call/code will reach the account
phone number. After the verification, you may
reset your trusted device.