First thing you need to know is that trying to let YouMail change the settings on your Atrix will not work. This will create an error saying something like “Invalid MMICode”. To get YouMail working follow the few simple steps below.
1. Go to the Android Market and download YouMail. Once its installed run it and go through the process of setting up your account.
2. Go to your Phones call settings and click on voicemail settings (Settings — Call Settings — Voicemail Settings) and change the voicemail number to 1-949-265-2922 and click ok. What this does is tells your phone to call that number to check your voicemail aka when you get the new voicemail notification and click it what the phone should do.
3. Go to your phones call settings and near the bottom select call forwarding (Settings — Call Settings — Call Forwarding) and change forward when busy, forward when unanswered and forward when unreachable to 1-949-265-2922. What this is doing is telling your phone where to send the person calling. Changing this number will send incomming missed calls to YouMail instead of your default carriers voicemail.
Tags: Motorola Atrix, Android, Visual Voicemail, Invalid MMI Code, Setup YouMail, You Mail, YouMail Error, YouMail MMI Code Error