T-R42/K-R42/CS918/MK888B WIFI PROBLEM

[vicolodo]

hello,
after update of ROM on my T-R42 (with RKBatchTool/RkAndroidTool),
wifi of my device no more works...
when i try to set it on, it stays on for a few seconds (but it dont show any wireless network),
then it returns to off...

I checked the logcat (calling adb logcat on terminal emulator), it is reported wifi driver load error...
here is what is printed on logcat when wifi goes on for the few seconds:

D/WifiHW ( 368): Read wifi chip type OK ! wifi_chip_type = RK901
D/WifiHW ( 368): wifi_load_driver: DRIVER_MODULE_PATH = /system/lib/modules/rkwifi.ko, DRIVER_MODULE_ARG =
D/BluetoothAdapterService(1097373104)( 811): getState(): mAdapterProperties: com.android.bluetooth.btservice.AdapterProperties@ 4168aef0
D/BluetoothAdapterService(1097373104)( 811): getState(): mAdapterProperties: com.android.bluetooth.btservice.AdapterProperties@ 4168aef0
D/WifiService( 368): setWifiEnabled: true pid=870, uid=1000
D/AudioHardwareALSA( 109): Audio exiting sandby will open audio device
D/AudioHardwareALSA( 109): AudioStreamOutALSA::standby().....
D/WifiHW ( 368): wifi_load_driver: driver load failed
D/WifiHW ( 368): Unable to unload driver module "wlan": No such file or directory
E/WifiStateMachine( 368): Failed to load driver!
E/WifiStateMachine( 368): DriverFailedState


under system/lib/modules i have these files:
rkwifi.ko
wlan.ko
(and the same two files followed by some numbers...)

these files have owner 'root' and group 'root' and permissions 644 (rw-r--r--)

what seems strange to me is the fact that in the logcat i see:

wifi_chip_type = RK901

but i checked my board,
it has ap6210 chip, as you can see here:



can someone help me?
why wifi goes off?

Thanks!!

[korcjan]

hi, i had same problem with no wifi. did you fixed it? i've got proper firmware for our device but i need to find link from seller. or i can just send you fresh cwm system backup where wifi is working.

[vicolodo]

hi, i had same problem with no wifi. did you fixed it? i've got proper firmware for our device but i need to find link from seller. or i can just send you fresh cwm system backup where wifi is working.

thank you
no i did not fix it yet...
my device is bricked
now i am trying to replace the nand flash chip,
as you can find in other thread i opened...

[korcjan]

thank you
no i did not fix it yet...
my device is bricked
now i am trying to replace the nand flash chip,
as you can find in other thread i opened...

I send you this link on xda but i see you've Got bigger problem than wifi now

[uggp]

I have the same problem with MK808B. My Stick run for two months with a new soft. Everything was OK. Last week suddenly I lost WIFI. After a couple of restarts returned. Today, again died.
Catlog shows:

WifiHW/D: Read wifi chip type OK ! wifi_chip_type = RK903
WifiHW/D: wifi_load_driver: DRIVER_MODULE_PATH = /system/lib/modules/rkwifi.ko, DRIVER_MODULE_ARG =
WifiHW/D: wifi_load_driver: driver load failed
WifiHW/D: Unable to unload driver module "wlan": No such file or directory
WifiStateMachine/E: Failed to load driver!
WifiStateMachine/E: DriverFailedState

Maybe this is a bug in the firmware?
I found something like this:

http://forum.xda-developers.com/showthread.php?t=2688389