If you are the owner of the iPhone 6, you can remove someone’s Apple ID from your device by following these steps:Go to Settings and tap on iCloud.Tap on the account that you want to remove and then scroll down and tap on Delete Account.Enter your password and then tap on Delete Account again to confirm.
To change your iCloud account on your iPhone, go to Settings > iCloud and enter your new iCloud account information. If you have two-factor authentication enabled for your iCloud account, you’ll need to provide verification code that’s sent to your other Apple devices or use the Find My iPhone app to generate a verification code.
If you are the current owner of the device, you can remove the previous owners from your Apple ID account. To do this, open the Settings app and tap iCloud. Tap Sign Out at the bottom of the screen. Enter your Apple ID password and tap Sign Out.
To change your primary iCloud account, you’ll need to sign out of all of your devices using the old account and sign in with the new account. Once you’re signed in, you can delete the old account.
If you want to change your Apple ID on your iPhone without resetting it, you can do so in the Settings app. Just go to Settings > [your name] > iCloud and tap Change Apple ID. You’ll be asked to enter your current Apple ID and password, and then you’ll be able to enter the new one.
To change the name of your iCloud account, you’ll need to follow a few simple steps. First, open the Settings app on your iPhone or iPad and tap on your name at the top of the screen. Next, tap on iCloud and then scroll down to the bottom of the screen and tap on Change Name. Enter your new name and then tap on OK. iCloud will ask you to verify your new name by entering your password.