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copied!<p>Open Settings, and turn Airplane Mode <strong>on</strong> to disable all network connections; <strong>off</strong> to re-enable.</p> <p><strong>EDIT</strong>: To enable Airplane Mode using iOS SDK (2.x and maybe 3.x), try <a href="http://blogs.oreilly.com/iphone/2009/01/bring-airplane-mode-control-ba.html" rel="nofollow">Erica Sadun's code</a>: </p> <pre><code>#import <UIKit/UIKit.h> #import <UIKit/UIApplication.h> #include <dlfcn.h> #include <stdio.h> // Framework Paths #define SBSERVPATH "/System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices" #define UIKITPATH "/System/Library/Framework/UIKit.framework/UIKit" int main(int argc, char **argv) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // // For testing try issuing the following: // ap y; sleep 5; ./ap n // if (argc < 2) { printf("Usage: %s (y | n)\n", argv[0]); exit(-1); } // Argument used to switch airplane mode off or on BOOL yorn = [[[NSString stringWithCString:argv[1]] uppercaseString] hasPrefix:@"Y"]; // Fetch the SpringBoard server port mach_port_t *p; void *uikit = dlopen(UIKITPATH, RTLD_LAZY); int (*SBSSpringBoardServerPort)() = dlsym(uikit, "SBSSpringBoardServerPort"); p = SBSSpringBoardServerPort(); dlclose(uikit); // Link to SBSetAirplaneModeEnabled void *sbserv = dlopen(SBSERVPATH, RTLD_LAZY); int (*setAPMode)(mach_port_t* port, BOOL yorn) = dlsym(sbserv, "SBSetAirplaneModeEnabled"); setAPMode(p, yorn); dlclose(sbserv); [pool release]; } </code></pre>

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