I want to change my password for the current id

Navigate to appleid.apple.com in your browser. Sign in with your Apple ID and password. Click Edit in the Account section. Select Change Apple ID under your current email address.

How to Create, Change, And Remove Apple ID On Mac

Follow these steps to change your Apple ID password.
Your Apple ID is the account you use to access Apple services like the App Store, Apple Music, iCloud, iMessage, FaceTime and more.
If you want to change your password If you know your Apple ID password and want to change it, follow these steps.

On your iPhone, iPad, or iPod touch with iOS 10.3 or later

1. Tap Settings > [your name] > Password & Security.
2. Tap Change Password.
3. Enter your current password or device passcode, then enter a new password and confirm the new password.
4. Tap Change or Change Password.
5. Sign in with your new Apple ID password to access Apple features and services.

Learn more about how to change your Apple ID and update other account information.

On your Mac

1. Sign in to your Apple ID account page.
2. In the Security section, click Change Password.
3. Enter your current password, then enter a new password and confirm the new password.
4. Click Change Password.
5. Sign in with your new Apple ID password to access Apple features and services.

If you have access to your apple ID.
Open settings and select change password option.
Enter your current password and in next tab to it enter new password.
Press update password button below to it.

1. Go to Manage your Apple ID and sign on with your current Apple ID and password. Then EDIT the Apple ID and change it back to the old Apple ID (this is temporary - Do NOT verify it, Do NOT change the password): Apple - My Apple ID
2. Go to Settings>iCloud, scroll to the bottom and click Delete Account. Use your current Apple ID password when asked. Follow the prompts to complete the deletion of the iCloud account
3. Go back to Manage your Apple ID, and EDIT the Apple ID back to the New ID (you may need to verify it)
4. Go back to Settings>iCloud and sign on with your new Apple ID
You should be all set. I hope this will help somehow.

This info comes from your User Guide at:
http://docs.blackberry.com/en/smartphone_users/deliverables/41695/

Set or change your smartphone password:
If you forget your BlackBerry smartphone password, it can't be recovered. You can reset your password without knowing your current password by deleting all your smartphone data.
Research In Motion recommends that you regularly create and save a backup file on your computer, especially before you update any software. Maintaining a current backup file on your computer might allow you to recover smartphone data if your smartphone is lost, stolen, or corrupted by an unforeseen issue.

1. On the home screen or in a folder, click the Options icon.
2. Click Security > Password.
   
   • To set a password, click Set Password.
   • To change your password, click Change Password.
3. Type a password.
4. Press the key > Save.

To turn off your smartphone password, clear the Enable checkbox.

and from this page specifically:
http://docs.blackberry.com/en/smartphone_users/deliverables/41695/1794763.jsp

If you know your current password this is the official procedure:

1. Go to your Yahoo Account Info page.
2. Enter your Yahoo ID and password.
3. Under "Sign-In and Security," click Change your password.
4. In the fields provided, enter:
   • Current password
   • New password (use a secure, strong password).
5. Click Save.

1. Go to your Yahoo Account Info page.
2. Enter your Yahoo ID and password.
3. Under "Sign-In and Security," click Change your password.
4. In the fields provided, enter:
   • Current password
   • New password (use a secure, strong password).
   • Re-enter your new password.
5. Click Save.

To change the BlackBerry ID password, complete the steps below for the specific device:

From the BlackBerry 10 smartphone:

Swipe down from the top bezel on the home screen and select Settings.
Scroll down and select BlackBerry ID.
Select Change Password.
Enter the current password in the Current BlackBerry ID Password field.
Enter the new password in the New BlackBerry ID Password and Confirm New Password fields.
Select Submit to complete the password change.
To confirm the change You have changed your password will be displayed

Login to your yahoo email and click on your username in the upper-right corner and select Account Info. You may have to retype your existing password again for security purposes. Then click change your password. Enter your current password and choose your new password. Save. That's it.

Thank you for using FixYa.

Logon with the current ID/password for the router, and then change the password.

Or, do a "factory reset" of the router, to reload the "default" ID/password.
Then, logon, and change the password.