Samsung Galaxy Nexus hard reset Android 4.0 Ice cream Sandwich
Turn off your phone. First press POWER, and then press VOLUME DOWN then VOLUME UP. (or power then VOL UP then VOL down)
It will bring up a menu that allows you to use volume up and down to cycle through the menu.
BE sure to press the keys in the right order.
Once an android with an exclamation appears, press both VOLUME UP + VOLUME DOWN and POWER until reset menu appears
this menu should be familiar to all android user of the past.
You can reflash and unlock your Galaxy nexus with firmware update/reflash
Galaxy Nexus images can be found here http://code.google.com/intl/en-US/android/nexus/images.html
Reset Galaxy Nexus using the menu reset option
1 From Home or All Apps screen, touch the Settings icon.
2 Under Personal, touch Backup & reset.
On Andorid ICS 4.0 Select Settings → Back up and reset→ Factory data reset → Reset device→ Delete all.
Factory data reset. Touch this option, then Reset phone to erase all your personal data from internal
storage, including information about your Google Account, any other accounts, your system and
app settings, any downloaded applications, and your music, photos, videos, and other files.
After resetting your phone, you'll need to re-enter the same information requested when you first set
up your phone. If you've been backing up your data to a Google account, an option during the setup
process allows you to restore it.
Some third-party apps also make use of the backup service, so if you reinstall one, its settings and data
The only way to revert to an unencrypted Galaxy Nexus is to perform a factory data reset,
which erases all your data.
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