If iPad 2 encounters an abnormality and cannot be shut down, you can press and hold the "Home button" and "Power button" until the iPad restarts.

iPad 2 is the second generation of Apple’s iPad. It was officially released on March 3, 2011 and launched in the United States on March 11. The biggest difference compared with the first generation is that iPad 2 will be thinner, lighter and have a front-facing camera, and will be sold in both black and white versions. Apple iPad 2 supports a variety of wireless communication standards, and can support Wi-Fi, UMTS, CDMA alone, optionally with 3G functionality, or a combination of the three. The iPad 2 uses a lighter carbon fiber material to replace the original brushed aluminum casing. According to data released by Apple, iPad 2 was launched in the United States on March 11, 2011, in 26 other countries on March 25, 2011, and in China on May 6, 2011.