See How To Change Your BlackBerry ID - Blackberry 10, 7.1, etc

Knowing how to change blackberry ID can be very useful especially to users of Blackberry devices. Non-users of Blackberry OS can as well acquire the KNOW_HOW of changing their blackberry ID because they might one-day need it. Hence, the purpose of this article "How To Change Your BlackBerry ID "If you have recently changed your regular email and would like to update your Blackberry ID username, I have compiled a list of steps on how to change your blackberry ID on the various blackberry devices.

How to Change BlackBerry 10 ID

Tap Settings followed by BlackBerry ID
Tap Edit along the bottom toolbar
Tap within the BlackBerry ID Username field and remove the current email address
Enter your new email address
Tap Submit

For BlackBerry 7.1 and earlier

Select Options followed by Device
Select BlackBerry ID
Clear the Username field and enter the email address to use as your BlackBerry ID Username.
Press the Menu key and select Save.
Enter your BlackBerry ID password and select OK to complete the change.
A message is displayed to confirm the change was successful.

BlackBerry PlayBook tablet

Swipe down from the top bezel or tap the Settings icon
Tap BlackBerry ID
Tap the BlackBerry ID Information pencil icon
Clear the BlackBerry ID Username field and enter the email address to use as your BlackBerry ID Username
Tap Submit
Enter your BlackBerry ID password when prompted and tap OK
A message is displayed to confirm the change was successful
Android, iPhone, iPad, iPod touch, or Windows Phone
Open BBM
Tap the More button (3 dots).
For those using Android, tap the 3 bar icon instead
Tap Settings
If using a Windows Phone, also tap General
Tap the BlackBerry ID email address
Enter the BlackBerry ID Password and tap Sign In
Tap Edit Account Information
Clear the BlackBerry ID Username field and enter the email address to use as your BlackBerry ID Username
Tap Save
Scroll to the bottom of the Account Information screen and tap the Done button
Tap the Back button to exit Settings
From a web browser, Visit http://www.blackberry.com/blackberryid
Under Already have a BlackBerry ID?, click Sign in
Enter your current username and password, and click Sign In
Next to Details, click Edit
Clear the Username field and enter the email address to use as your BlackBerry ID Username, then click Save. A confirmation email is sent to the email address
Note: If you do not receive the email message, see KB28232
Open the email from donotreply@blackberry.com with Subject: Confirm your BlackBerry® ID mail address. In the message body, click confirm your email address
On the Confirm your BlackBerry ID screen, enter your BlackBerry ID password and click Submit
A message is displayed to confirm the change was successful.

That's all... but if u ever get stuck, use the comment box below to express the problem explicitly and we will make sure to help.