I'm sorry that my English is not good. Last 1 week, I downloaded the update file of android 2.2.1-4 from the site of www.viewsonic.com and upgraded it in my Viewpad 10 (no 3G). When I open and use the android 2.2, I can use only 200 minutes. After that I open the battery usage and found that the battery consume the program of radio phone about 70%. How can I close the function of the radio phone? Especially, I had downloaded the power control applicatioin and used the flight mode. The power consumion of radio phone is still happen and I cannot shotdown the data transfer function of 2G-3G also. My viewpad does not have the dial phone program. My Viewpad spec: Atom 1.6, RAM 1 GB, SSD 16 GB, no sim gard slot, no 3 G option.