for some specific reason you have to know this methods . because some refer to earn app not only register your mobile number but also record your device id and in some cases it could IMEI number also.
so for earning unlimited referrer from these apps you should know how to change the behavior of that app and also change what it records.
in this post we will give you a method to change your device id without root and with root. device id is a unique id allotted and generated by your phone when it boots up first time. Some app read and remember it as your phone identity.
also we are sharing a method to change your IMEI number with root, without root you can not have access to your IMEI number registry that is why you can only read it by dialing *#06# so by this post you will be able to change it.

How To Change Device ID of Your phone (Root Required) ;-

1. Download Device ID Changer From Here.

2. Open It And Change Your Device ID And Than Reboot Your Phone.

3. Your Device ID Will Be Changed.

For NON ROOTED Device :-

1. You have to take back up of all your phone data.

2. than in setting go to backup and restore and factory reset your phone.

3. This process will provide you a new device id.

How To change IMEI Number Of Your Device :-

1. Download And Install IMEI NUMBER CHANGER FROM HERE.(Requires Root)

2. Run it and change your imei number.

3. and than reboot your phone.

thank you for reading , have a good day

Also read : How NOT To Root your phone.