Upon adding your Petrek unit's IMEI number, you will be prompted to enter the passcode, which is "12345678". After adding the IMEI to this account, it cannot be added to another account unless it is removed. You can share the tracker's location by clicking the "share" button, but the recipient will not have full control over the app. If the recipient or all family members wish to have full control, including the ability to access location history and adjust reporting settings, they just need to sign in to the SafeTrek account linked to the specified IMEI number of the Petrek unit. For instance, if you log into SafeTrek with abc123@abcmail.com and have linked IMEI 12345678910 to that account, that IMEI will be associated with that specific account. If you have logged back into SafeTrek and noticed that the IMEI is no longer associated with that account, it could be due to a prior login with a different email or account. Contact us with either the IMEI number or your order number, and we will assist in identifying the correct account and potentially removing the IMEI for re-addition to your new account.