Before, I had a coc acc and I got bored so I gave my acc (gmail) to my friend. My friend then changed the ign to his name. Now that i got a new phone, I installed coc and even if my old acc is already installed, i cannot play my old acc and his ign appears at the top. How can I change my ign? Do I need to log out my acc from his phone?
To change your IGN
Open Google Play Games.
Tap the IGN
Tap on the Pencil in the top right
Change the IGN.
I think it's easy only you need to follow this step... Go to settings->accounts->add account->and add another Google account with the new email. Then go into the play store and there will be your email with a drop down arrow. Tap it and select the new email.