EchoEum
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Joined: Mon Aug 01, 2016 1:01 pm

Testing Hardware failure?

Tue Aug 02, 2016 11:21 am

Is there a way for me to test and see if the wlan card is physically working?

I'm trying to figure out if I should be returning my unit or figuring out a software fix.

Cheers

MaxK1
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Re: Testing Hardware failure?

Tue Aug 02, 2016 11:44 am

What model Pi? Which wi-fi adapter? What O/S? Fully up-to-date? Anything not covered by The Official Secrets Act? :-)
You are in a maze of twisty little passages, all alike.
When General Failure and Major Disaster get together, Private Parts usually suffers.

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B.Goode
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Re: Testing Hardware failure?

Tue Aug 02, 2016 11:47 am

Wlan card?

Is this an external device of some kind? Or are you referring to the interface built into an RPi3?

What tests have you carried out: which Operating System is being used? Do you have independent evidence that the access point you are associating with is working?

Added: overlapping ideas unintended, but left for emphasis.

EchoEum
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Joined: Mon Aug 01, 2016 1:01 pm

Re: Testing Hardware failure?

Tue Aug 02, 2016 1:51 pm

Thank you for the replies.

Neither wifi or bluetooth are working and I am using a RPi3 with the build in hardware.

Latest version of Jessie.

I have updated and upgraded to ensure everything is current.

I have run

Code: Select all

iwlist wlan0 scan
and receive "wlan0 No scan results"

I have spent several hours following a bunch of advice in other threads.

The wifi and bluetooth were working previously.

It stopped working in the middle of me attempting to get bluetooth audio working.

I have tried formatting two different SD Cards and doing fresh installs of NOOBS and Jessie because I thought it might have been something I did, but that didn't resolve the issue.

Thank you for any help/advice you may have for me.

Cheers

UPDATE: oh, and yes I know the wifi is working at I have many other devices running off it.
Last edited by EchoEum on Tue Aug 02, 2016 2:01 pm, edited 1 time in total.

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RaTTuS
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Re: Testing Hardware failure?

Tue Aug 02, 2016 2:00 pm

try
sudo iwlist wlan0 scan
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WARNING - some parts of this post may be erroneous YMMV

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EchoEum
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Re: Testing Hardware failure?

Tue Aug 02, 2016 2:06 pm

RaTTuS wrote:try
sudo iwlist wlan0 scan
If I add "sudo" to the command I receive
"wlan0 Interface doesn't support scanning : Device or resource busy"

UPDATE: I also relieve that message if I run the command for wlan1; regardless of whether "sudo" is used or not.

UPDATE-2: I ran

Code: Select all

sudo ifconfig wlan0 up
now when I run

Code: Select all

sudo iwlist wlan0 scan
I receive "wlan0 No scan results"

EchoEum
Posts: 56
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Re: Testing Hardware failure?

Tue Aug 02, 2016 2:29 pm

It is also worth noting that if I search for networks under the GUI it says "wlan0: not associated"

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DougieLawson
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Re: Testing Hardware failure?

Tue Aug 02, 2016 4:46 pm

Connect it to the internet with a ethernet cable and run
sudo apt-get update && sudo apt-get -y dist-upgrade && sudo rpi-update
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EchoEum
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Re: Testing Hardware failure?

Tue Aug 02, 2016 5:08 pm

DougieLawson wrote:Connect it to the internet with a ethernet cable and run
sudo apt-get update && sudo apt-get -y dist-upgrade && sudo rpi-update
I previously tried each of these by typing them in after the previous one had completed.

I just gave it a go with this syntax and rebooted.

Unfortunately, I see no change.

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DougieLawson
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Re: Testing Hardware failure?

Tue Aug 02, 2016 5:16 pm

Change your power supply for one that can reliably supply 2.5A @ 5V0.
Any language using left-hand whitespace for syntax is ridiculous

Any DMs sent on Twitter will be answered next month.
Fake doctors - are all on my foes list.

Any requirement to use a crystal ball or mind reading will result in me ignoring your question.

EchoEum
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Re: Testing Hardware failure?

Tue Aug 02, 2016 5:56 pm

DougieLawson wrote:Change your power supply for one that can reliably supply 2.5A @ 5V0.
I just gave that a go. I tried 4 different 5v from apple, 1 from Game Stop, 1 from Samsung, and 1 from unknown:China.

The 4 Apples and 1 Samsung each produced a solid red light.

The samsung powered on, but never received the red light.

And the unknown from china started to boot then died out.

Each is listed as being 5v. None of the successful boots produced a change in network connectivity.

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DougieLawson
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Re: Testing Hardware failure?

Tue Aug 02, 2016 7:15 pm

Any language using left-hand whitespace for syntax is ridiculous

Any DMs sent on Twitter will be answered next month.
Fake doctors - are all on my foes list.

Any requirement to use a crystal ball or mind reading will result in me ignoring your question.

EchoEum
Posts: 56
Joined: Mon Aug 01, 2016 1:01 pm

Re: Testing Hardware failure?

Tue Aug 02, 2016 9:48 pm

So it must be a hardware issue. It now says "no network adapter found"

I put the same card into the RPi3 that just came in the mail and it works fine.

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DougieLawson
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Re: Testing Hardware failure?

Tue Aug 02, 2016 10:05 pm

It's going to be a kernel/firmware/OS problem.

Start with a completely fresh copy of Raspbian 2016-05-27 on a new SDCard. Don't bother with NOOBS.
Boot that then run
sudo apt-get update && sudo apt-get -y dist-upgrade
Any language using left-hand whitespace for syntax is ridiculous

Any DMs sent on Twitter will be answered next month.
Fake doctors - are all on my foes list.

Any requirement to use a crystal ball or mind reading will result in me ignoring your question.

EchoEum
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Joined: Mon Aug 01, 2016 1:01 pm

Re: Testing Hardware failure?

Tue Aug 02, 2016 11:32 pm

You think it might still be software related when the same card works in a different hardware unit?

MaxK1
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Re: Testing Hardware failure?

Tue Aug 02, 2016 11:46 pm

I managed to kill the wifi part of the chip on one of my pi 3's. Bt still works fine... post your dmesg output if you can.
You are in a maze of twisty little passages, all alike.
When General Failure and Major Disaster get together, Private Parts usually suffers.

EchoEum
Posts: 56
Joined: Mon Aug 01, 2016 1:01 pm

Re: Testing Hardware failure?

Wed Aug 03, 2016 12:34 am

MaxK1 wrote:I managed to kill the wifi part of the chip on one of my pi 3's. Bt still works fine... post your dmesg output if you can.
How do I obtain that?

SonOfAMotherlessGoat
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Re: Testing Hardware failure?

Wed Aug 03, 2016 1:31 am

Type dmesg at a command line prompt.
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RaTTuS
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Re: Testing Hardware failure?

Wed Aug 03, 2016 6:46 am

sudo apt-get update && sudo apt-get upgrade -y && sudo apt-get install pastebinit
dmesg | pastebinit
post the resulting url
How To ask Questions :- http://www.catb.org/esr/faqs/smart-questions.html
WARNING - some parts of this post may be erroneous YMMV

1QC43qbL5FySu2Pi51vGqKqxy3UiJgukSX
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EchoEum
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Re: Testing Hardware failure?

Fri Aug 05, 2016 7:09 pm

CODE REMOVED
Last edited by EchoEum on Tue Aug 09, 2016 2:09 pm, edited 1 time in total.

EchoEum
Posts: 56
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Re: Testing Hardware failure?

Fri Aug 05, 2016 7:13 pm

CODE REMOVED
Last edited by EchoEum on Tue Aug 09, 2016 2:12 pm, edited 1 time in total.

EchoEum
Posts: 56
Joined: Mon Aug 01, 2016 1:01 pm

Re: Testing Hardware failure?

Fri Aug 05, 2016 7:45 pm

Here is the part I think pertains to my problem:

Code: Select all

[    6.123601] brcmfmac: brcmf_add_if: ERROR: netdev:wlan0 already exists
[    6.123628] brcmfmac: brcmf_add_if: ignore IF event
[    6.128380] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[    6.128429] brcmfmac: power management disabled

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DougieLawson
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Re: Testing Hardware failure?

Fri Aug 05, 2016 7:49 pm

Nope, that looks perfectly normal

Code: Select all

[    5.800109] brcmfmac: brcmf_add_if: ERROR: netdev:wlan0 already exists
[    5.800137] brcmfmac: brcmf_add_if: ignore IF event
[    5.805464] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[    5.805518] brcmfmac: power management disabled
[    6.485019] cfg80211: Regulatory domain changed to country: GB
What do you get from

ifconfig -a
ip route
ping -c3 (ip route | awk '/default/ {print $3}')
ping -c3 8.8.8.8
ping -c3 google.com
Any language using left-hand whitespace for syntax is ridiculous

Any DMs sent on Twitter will be answered next month.
Fake doctors - are all on my foes list.

Any requirement to use a crystal ball or mind reading will result in me ignoring your question.

EchoEum
Posts: 56
Joined: Mon Aug 01, 2016 1:01 pm

Re: Testing Hardware failure?

Fri Aug 05, 2016 7:57 pm

CODE REMOVED
Last edited by EchoEum on Tue Aug 09, 2016 2:10 pm, edited 1 time in total.

EchoEum
Posts: 56
Joined: Mon Aug 01, 2016 1:01 pm

Re: Testing Hardware failure?

Fri Aug 05, 2016 8:23 pm

CODE REMOVED
Last edited by EchoEum on Tue Aug 09, 2016 2:11 pm, edited 1 time in total.

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