Weird WLAN problem after stupid upgrade attempt

Tom Seago tom at tomseago.com
Wed Jan 9 21:13:43 EST 2008


Well, darnit.  Looks like things are flaky.  Here is the procedure and  
the results I just got.

- Flash q2d07.rom

test /wlan worked fine

- Flash q2d08.rom  (to verify that 08 is causing problems)

test /wlan fails - device not found

- Flash q2d08.rom (because I wanted 07 and mistyped the filename)

- Flash q2d07.rom

test /wlan fails - device not found

- Pull battery and AC, wait 20 seconds

test /wlan fails - device not found

- Flash q2d07.rom again

test /wlan fails - device not found

test /usb - shows port 0 in use, same as on my working machine. This  
is with no USB sticks connected. When a USB stick is connected, then  
ports 0 and 1 are in use.

So now that test /wlan is failing with '07, that encourages me to  
believe a simple hardware issue is occurring.  Although the WLAN card  
is a USB device, I'm assuming it is surface mounted and there isn't  
any sort of physical connection that could have shaken loose is  
there?  I'm not opposed to the use of a screwdriver, but I haven't  
bothered yet since I doubt that I could do anything.

										(-: Tom ;-)


On Jan 9, 2008, at 4:27 PM, Mitch Bradley wrote:

> If you revert to Q2D07, does "test /wlan" work again?
>
> Q2D07 and Q2D08 have different versions of the wlan firmware wad.   
> Perhaps there is something about your wlan hardware that works with  
> the wlan firmware image in Q2D07, but not with the one in Q2D08 and  
> not with whichever version is in your OS version.  That is one of  
> the only two hypotheses that come to mind.  The other on is the  
> possibility that there is something flaky about the onboard USB  
> connection, so that the device sometimes enumerates and sometimes  
> doesn't, depending on subtle factors.
>
>
> Tom Seago wrote:
>> I've updated to the Q2D08 firmware now.
>>
>> Whereas the '07 firmware seemed to run the test /wlan ok, but the  
>> wlan card wasn't visible to the regular OS, now when I run the same  
>> command on the '08 firmware I get
>>
>> ok test /wlan
>> Device /wlan not found.
>> ok
>>
>> So what's the verdict. Do folks think I should RMA this thing?  It  
>> seems like it got busted merely via software - which one would  
>> normally not expect to be possible.
>>
>>                                        (-: Tom ;-)
>>
>>
>> On Jan 6, 2008, at 12:56 AM, Tom Seago wrote:
>>
>>> Hi Mitch.  I got my developer key and ran "test /wlan" at the ofw  
>>> prompt.  That seemed to work!  At least, it scrolled a fairly  
>>> large amount of info up the screen which appeared to be the stats  
>>> of various visible wifi networks.  However, all my problems where  
>>> the OS can't see the card remain.
>>>
>>> It makes me happy that this appears to be software not hardware.  
>>> It still confuses me how I managed to get into this bizarre  
>>> situation though.  Is there a way to do any more complete of a  
>>> device wipe beyond the normal reflashing procedure using the  
>>> signed build from a usb stick?
>>>
>>> I appreciate your help. I hope we can figure out what's up with  
>>> this thing.
>>>
>>>                                        (-: Tom ;-)
>>>
>>>
>>> On Jan 4, 2008, at 10:22 AM, Mitch Bradley wrote:
>>>
>>>> Tom Seago wrote:
>>>>> ...
>>>>> Another thing I have done is run the POST diagnostics by holding  
>>>>> the  left rocker button during boot.  I did this on both  
>>>>> machines at the  same time to diff the results.  Both say that  
>>>>> usb port 0 is in use -  good.  But the working machine did  
>>>>> scroll some wlan diagnostic  information up the screen at the  
>>>>> end of the the video tests that the  broken machine did not do.   
>>>>> The broken machine did not report an error  - but it clearly did  
>>>>> not run the same wlan test.
>>>>>
>>>>>
>>>>
>>>> Chris Ball wrote:
>>>>> Hi Tom,
>>>>>
>>>>> Once you have your developer key, please run:
>>>>>
>>>>> ok  test /wlan
>>>>>
>>>>> If that fails too, it should be clear that we need to RMA and  
>>>>> replace
>>>>> your laptop.  Thanks!
>>>>
>>>> The POST diags that Tom ran include the "test /wlan" step.  That  
>>>> diagnostic info that scrolled by is a dump of the access point  
>>>> scan info.  It happens just before the touchpad test.
>>>>
>>>> My recommendations:
>>>>
>>>> a) Remove all power - AC and battery - for a few seconds to reset  
>>>> the wireless really well, then reboot and try the POST diags again.
>>>>
>>>> b) If that doesn't fix it, email me when you get your developer  
>>>> key and I'll work with you on IRC to see if we can learn more  
>>>> about the failure details.
>>>>
>>>> Mitch Bradley
>>>>
>>>>
>>>
>>
>




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