hi my phone got updated online through WiFi] at my home nd it asked 2 restart nd asked to relogin 2 my gmail account den i tried to login to my account but i forgot my password] so den i had choosen option on gmail forgot my password, den it asked my mobile no but i found other no last 3 digts which is not my mobile no. so i could not get my code nd i could not give my no...now wat 2 do how can i login to my account even my recovery mail] id is changed same thing happen.... my phone is moto-g
Unfortunately, if, when you created the account, you have not registered a secret question which you remember, or an alternate recovery email address or phone number to which you have access to receive a reset code, you cannot prove that you are the account's legitimate owner. Hence account recovery is absolutely impossible and there is no way around it.
There is nothing you can do if you created the account on the mobile device or number you no longer have access to.
Always create accounts on a PC or Laptop (landline IP), and then attach a recovery email to it. That way, you can have multiple ways to recover the account!