[Android Q&A, Help & Troubleshooting] bril7:
Hello,

after rooting with DooMLoRD v4 tool my china A6380 Android 2.3, which has mt6516 416MHz and Android 2.2.1 instead, wifi stopped working.

Tried unroot and factory reset but no luck, still "Unable to scan for networks".

any help to restore wifi is greatly appreciated. Thanks.

logcat follows:

D/AudioStreamHandler( 51): Asm_Afe_Start(ASM_AFE_MODE_NORMAL)

I/WifiProxyDialog( 213): >>> onReceive()

I/WifiProxyDialog( 213): >>> handleWifiStateChange()

D/AudioYusuHardware( 51): setMasterVolume=1.000000, avaliable device=2

D/AudioYusuHardware( 51): Audio_Match_Output_device mRoutes = 2 mMode = 0 Mode = 0 CheckForceUse 1 mOuputForceuse[Mode] = 0

D/AudioYusuHardware( 51): Audio_Find_Normal_Output_Device mRoutes = 2

D/AudioYusuHardware( 51): Audio_Match_Output_device mRoutes = 2 mMode = 0 Mode = 0 CheckForceUse 0 mOuputForceuse[Mode] = 0

D/AudioYusuHardware( 51): Audio_Find_Normal_Output_Device mRoutes = 2

D/dalvikvm( 126): JNI Landroid/os/UEventObserver;.next_event(4628)

D/dalvikvm( 213): GC_FOR_MALLOC freed 3723 objects / 440976 bytes in 141ms

D/SettingsAppWidgetProvider( 213): Widget is from a previous version... Let's update

D/SettingsAppWidgetProvider( 213): No instances yet... Wait for at least one instance to exist before adding global settings

D/ConnectivityService( 126): getMobileDataEnabled returning false

D/AudioYusuStreamOut( 51): AudioYusuStreamOut::standby()

D/AudioYusuHardware( 51): setMasterVolume=0.000000, avaliable device=2

D/AudioYusuHardware( 51): Audio_Match_Output_device mRoutes = 2 mMode = 0 Mode = 0 CheckForceUse 1 mOuputForceuse[Mode] = 0

D/AudioYusuHardware( 51): Audio_Find_Normal_Output_Device mRoutes = 2

D/AudioYusuHardware( 51): Audio_Match_Output_device mRoutes = 2 mMode = 0 Mode = 0 CheckForceUse 0 mOuputForceuse[Mode] = 0

D/AudioYusuHardware( 51): Audio_Find_Normal_Output_Device mRoutes = 2

D/AudioYusuHardware( 51): setMasterVolume=1.000000, avaliable device=2

D/AudioYusuHardware( 51): Audio_Match_Output_device mRoutes = 2 mMode = 0 Mode = 0 CheckForceUse 1 mOuputForceuse[Mode] = 0

D/AudioYusuHardware( 51): Audio_Find_Normal_Output_Device mRoutes = 2

D/AudioYusuHardware( 51): Audio_Match_Output_device mRoutes = 2 mMode = 0 Mode = 0 CheckForceUse 0 mOuputForceuse[Mode] = 0

D/AudioYusuHardware( 51): Audio_Find_Normal_Output_Device mRoutes = 2

D/AudioLAD( 51): LAD_SwitchVCM, A2A_SetVCM TurnOn:0

D/AudioCompensationFilter( 51): AudioCompensationFilter::Stop()

D/dalvikvm( 126): JNI Landroid/net/LocalSocketImpl;.readba_native(14912)

D/Tethering( 126): wlan0 is not a tetherable iface, ignoring

D/WifiHW ( 126): [WIFI] wifi_start_supplicant

D/WifiHW ( 126): [WIFI] wifi_init_iface: set mode

D/WifiHW ( 126): [WIFI] wifi_init_iface ok

D/WifiHW ( 126): [WIFI] wifi_start_supplicant OK!

D/WifiService( 126): ACTION_BATTERY_CHANGED pluggedType: 2

D/WifiHW ( 126): [WIFI] wifi_connect_to_supplicant

E/libbwcs_mtk( 126): send BWCS message fail:No such file or directory

I/libbwcs_mtk( 126): Send BWCS Message 7

D/WifiHW ( 126): [bwcs] BWCS_WIFI_DEV_UP socket error!

D/WifiHW ( 126): [bwcs] BWCS_WIFI_DEV_UP dev up!

D/WifiHW ( 126): [WIFI] wpa_ctrl_open /data/misc/wpa_supplicant/wlan0

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

I/DEBUG ( 47): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***

I/DEBUG ( 47): Build fingerprint: 'yusu/vigor16_a10y/vigor16_a10y/unknown:2.2.1/MASTER/eng.scm.20110708.225006:user/test-keys'

I/DEBUG ( 47): pid: 25474, tid: 25474 >>> /system/bin/logwrapper <<<

I/DEBUG ( 47): signal 4 (SIGILL), fault addr 00008c04

I/DEBUG ( 47): r0 00000002 r1 00009288 r2 00000002 r3 00000000

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

I/DEBUG ( 47): r4 0000a100 r5 00000005 r6 be804ce4 r7 00000000

I/DEBUG ( 47): r8 00000000 r9 00000000 10 00000000 fp 00000000

I/DEBUG ( 47): ip 0000a148 sp be804cb8 lr 00008c05 pc 00008c04 cpsr 20000030

I/DEBUG ( 47): #00 pc 00008c04 /system/bin/logwrapper.bin

I/DEBUG ( 47): #01 pc 0000d362 /system/lib/libc.so

I/DEBUG ( 47):

I/DEBUG ( 47): code around pc:

I/DEBUG ( 47): 00008be4 4605a300 280118e4 dc01460e ffe8f7ff

I/DEBUG ( 47): 00008bf4 1d304935 90012202 68701861 ee3ef7ff

I/DEBUG ( 47): 00008c04 9601b110 e0012700 27013d01 dc012d01

I/DEBUG ( 47): 00008c14 ffd6f7ff 21024a2d f7ff18a0 2800ee66

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

I/DEBUG ( 47): 00008c24 da034606 18e04b2a ffaef7ff f7ff4630

I/DEBUG ( 47):

I/DEBUG ( 47): code around lr:

I/DEBUG ( 47): 00008be4 4605a300 280118e4 dc01460e ffe8f7ff

I/DEBUG ( 47): 00008bf4 1d304935 90012202 68701861 ee3ef7ff

I/DEBUG ( 47): 00008c04 9601b110 e0012700 27013d01 dc012d01

I/DEBUG ( 47): 00008c14 ffd6f7ff 21024a2d f7ff18a0 2800ee66

I/DEBUG ( 47): 00008c24 da034606 18e04b2a ffaef7ff f7ff4630

I/DEBUG ( 47):

I/DEBUG ( 47): stack:

I/DEBUG ( 47): be804c78 be804db0 [stack]

I/DEBUG ( 47): be804c7c b000c448 /system/bin/linker

I/DEBUG ( 47): be804c80 00000000

I/DEBUG ( 47): be804c84 b000c9ac /system/bin/linker

I/DEBUG ( 47): be804c88 000003f2

I/DEBUG ( 47): be804c8c b0002a5b /system/bin/linker

I/DEBUG ( 47): be804c90 00000000

I/DEBUG ( 47): be804c94 be804d24 [stack]

I/DEBUG ( 47): be804c98 b000c4a8 /system/bin/linker

I/DEBUG ( 47): be804c9c be804e82 [stack]

I/DEBUG ( 47): be804ca0 b00155a0

I/DEBUG ( 47): be804ca4 b0016bdc

I/DEBUG ( 47): be804ca8 00000000

I/DEBUG ( 47): be804cac 0000a100 /system/bin/logwrapper.bin

I/DEBUG ( 47): be804cb0 df002777

I/DEBUG ( 47): be804cb4 e3a070ad

I/DEBUG ( 47): #00 be804cb8 00000005

I/DEBUG ( 47): be804cbc be804ce8 [stack]

I/DEBUG ( 47): be804cc0 be804cfc [stack]

I/DEBUG ( 47): be804cc4 00000000

I/DEBUG ( 47): be804cc8 00000000

I/DEBUG ( 47): be804ccc 00000000

I/DEBUG ( 47): be804cd0 00000000

I/DEBUG ( 47): be804cd4 afd0d365 /system/lib/libc.so

I/DEBUG ( 47): #01 be804cd8 00000000

I/DEBUG ( 47): be804cdc b0002823 /system/bin/linker

I/DEBUG ( 47): be804ce0 00000005

I/DEBUG ( 47): be804ce4 be804dda [stack]

I/DEBUG ( 47): be804ce8 be804df1 [stack]

I/DEBUG ( 47): be804cec be804e0c [stack]

I/DEBUG ( 47): be804cf0 be804e13 [stack]

I/DEBUG ( 47): be804cf4 be804e1b [stack]

I/DEBUG ( 47): be804cf8 00000000

I/DEBUG ( 47): be804cfc be804e41 [stack]

I/DEBUG ( 47): be804d00 be804e72 [stack]

I/DEBUG ( 47): be804d04 be804e8e [stack]

I/DEBUG ( 47): be804d08 be804ea1 [stack]

I/DEBUG ( 47): be804d0c be804eb6 [stack]

I/DEBUG ( 47): be804d10 be804ed1 [stack]

I/DEBUG ( 47): be804d14 be804ee4 [stack]

I/DEBUG ( 47): be804d18 be804f01 [stack]

I/DEBUG ( 47): be804d1c be804f1b [stack]

I/BootReceiver( 126): Copying /data/tombstones/tombstone_08 to DropBox (SYSTEM_TOMBSTONE)

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

D/WifiHW ( 126): [WIFI] Open control connection fail (/data/misc/wpa_supplicant/wlan0). Sleep

E/WifiHW ( 126): Unable to open connection to supplicant on "/data/misc/wpa_supplicant/wlan0": No such file or directory

D/WifiStateTracker( 126): Reset connections and stopping DHCP

D/dalvikvm( 194): JNI Landroid/net/LocalSocketImpl;.readba_native(9679)

D/StatusBarPolicy( 126): sim1 on signal strength changed before

D/StatusBarPolicy( 126): asu is 6

D/StatusBarPolicy( 126): sim1 on signal strength changed after

D/dalvikvm( 194): JNI Landroid/net/LocalSocketImpl;.readba_native(9070)

D/StatusBarPolicy( 126): sim2 on signal strength changed before

D/StatusBarPolicy( 126): asu is 5

D/StatusBarPolicy( 126): sim2 on signal strength changed after

D/dalvikvm( 126): JNI Landroid/net/NetworkUtils;.stopDhcp(1009)

D/WifiStateTracker( 126): Disabling interface

D/dalvikvm( 213): JNI Landroid/os/BinderProxy;.transact(4077)

I/WifiProxyDialog( 213): >>> onReceive()

I/WifiProxyDialog( 213): >>> handleWifiStateChange()

D/dalvikvm( 126): JNI Landroid/os/UEventObserver;.next_event(4944)

D/dalvikvm( 126): JNI Landroid/net/LocalSocketImpl;.readba_native(5055)

D/SettingsAppWidgetProvider( 213): Widget is from a previous version... Let's update

D/SettingsAppWidgetProvider( 213): No instances yet... Wait for at least one instance to exist before adding global settings

D/ConnectivityService( 126): getMobileDataEnabled returning false

D/WifiService( 126): ACTION_BATTERY_CHANGED pluggedType: 2

D/WarningMessage( 213): TimerTask: ReadCodeTask.run()

D/WarningMessage( 213): sendWarningMessage() called.

I/global ( 213): Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is

required.

D/WarningMessage( 213): line content: 0

D/WarningMessage( 213): notify code is 0

D/WarningMessage( 213): getWarningMessage() called.

D/dalvikvm( 194): JNI Landroid/net/LocalSocketImpl;.readba_native(2198)

I/MtkAgps ( 126): onCellLocationChanged()_2

D/dalvikvm( 194): JNI Landroid/net/LocalSocketImpl;.readba_native(2939)

I/MtkAgps ( 126): onCellLocationChanged()

D/WifiHW ( 126): [WIFI] wifi_connect_to_supplicant

E/WifiHW ( 126): Supplicant not running, cannot connect

I/SurfaceFlinger( 126): [SurfaceFlinger] statistic - FrameCount: 120, Duration: 16937343us, fps: 7.084936

D/dalvikvm( 207): GC_EXPLICIT freed 510 objects / 27792 bytes in 133ms

D/WifiHW ( 126): [WIFI] wifi_connect_to_supplicant

E/WifiHW ( 126): Supplicant not running, cannot connect

D/dalvikvm( 126): JNI Landroid/os/UEventObserver;.next_event(9864)

D/WarningMessage( 213): TimerTask: ReadCodeTask.run()

D/WarningMessage( 213): sendWarningMessage() called.