All of a sudden
 

My voice mail says "Not a valid password". This is on my android phone. Now What?:(

reset it........on your phone or on your laptop

:shrug:

Call your provider and see if they can help, or you should be able to go to your voice mail website and click on a 'forgot my password' option, this should get you an email with a link to reset your password.

Your Android phone may have nothing to do with your voicemail. You may need to log in to your cell phone carrier's website to change the password.

Thanks, Dave. T-mobile took care of it.

We find their customer service to be excellent.

Time to call t-mobile again, same password problem.

Try #793# in your dialer . It will reset it to the last 4 digits of your phone number.

Hmmm, perhaps it's time for a physical checkup and be tested for OldTimers.....:duck:
Just kidding..........:icon_wink:

OP, you need to determine if the voicemail password is being generated by your phone or by your T-Mobile service, or both. Why not just turn off the password if you can?