Please try searching before posting. There are two threads on the front page of Q&A that address this issue.
And questions unironically belong in Q&A, as annotated by the sticky at the top of this forum.
Device: Samsung Galaxy Nexus
Android Version: 4.1.2; AOKP Build 5
Device: Motorola Xoom WiFi
Android Version: 4.1.2; Eos Nightlies
Device: Samsung Moment
Android Version: 2.2.2; UberMoment 1.3.4
Other devices I am familiar with:
HP Touchpad | HTC Droid Incredible | Motorola Droid X | Motorola Photon | Nook Color | Nook Tablet