解决不能打开wifi问题

D/WifiService( 313): setWifiEnabled: true pid=892, uid=1000

在源码目录下 frameworks/base/services/java/com/android/server/WifiService.java

D/BluetoothAdapter( 892): 1103147976: getState() : mService = null. Returning STATE_OFF

D/Tethering( 313): sendTetherStateChangedBroadcast 1, 0, 0

E/WifiStateMachine( 313): Failed to reload STA firmware java.lang.IllegalStateException: command ‘35 softap fwreload wlan0 STA‘ failed with ‘400 35 Softap operation failed (Cannot assign requested address)‘

W/SocketClient( 64): write error (Broken pipe)

D/CommandListener( 64): Setting iface cfg

D/CommandListener( 64): Trying to bring down wlan0

I/wpa_supplicant( 926): Successfully initialized wpa_supplicant

I/wpa_supplicant( 926): rfkill: Cannot open RFKILL control device

D/Tethering( 313): InitialState.processMessage what=4
D/Tethering( 313): sendTetherStateChangedBroadcast 0, 0, 0
I/wpa_supplicant( 926): rfkill: Cannot open RFKILL control device
E/wpa_supplicant( 926): nl80211: Could not configure driver to use managed mode
E/wpa_supplicant( 926): Could not read interface p2p0 flags: No such device
E/wpa_supplicant( 926): p2p0: Failed to initialize driver interface
I/wpa_supplicant( 926): wlan0: CTRL-EVENT-TERMINATING
E/WifiHW ( 313): Supplicant not running, cannot connect
E/WifiHW ( 313): Supplicant not running, cannot connect
E/WifiHW ( 313): Supplicant not running, cannot connect
E/WifiHW ( 313): Supplicant not running, cannot connect
E/WifiHW ( 313): Supplicant not running, cannot connect

原文：http://www.cnblogs.com/ioio/p/4452955.html