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need to change the iCloud id. how can be done?
Log in https://appleid.apple.com/ to change the email alias of your Apple ID. If you can’t log in, contact Apple support.
If you have a device that shows a partial email address and asking for a password. If that partial email address doesn’t belong to you then the device is iCloud locked and only good for parts. If the partial email is your email address, then reset the password, Apple will send a link to that email address to unlock the device, after you reset the password, enter that password in your device.
Tap Settings > iCloud on your iOS device. Scroll down and tap Sign Out, then tap Sign Out to confirm. If you’re using iOS 7 or earlier, tap Delete Account, then tap Delete to confirm. Tap Keep on My [Device] or Delete from My [Device], and enter the password for your Apple ID. Your data remains in iCloud, and is updated on your device when you sign in to iCloud again. If you’re signed in on more than one device with this Apple ID, repeat steps 1-3 on each device. Go to your Apple ID account page, and sign in again. Change your Apple ID to the email address that you want to use. You’ll need to verify the email address. Tap Settings > iCloud on your iOS device, and sign in with your new Apple ID.
