BBBW WiFi does not work after eprom flash

[Stephen Mansfield]

Hello,

I received my BBBW the other day.  Everything worked fine including the wireless.  I updated it with the latest Stretch LXQT image -- Debian 9.3 2018-01-28 SD LXQT and the wireless no longer works.  When I type root@beaglebone:/# connmanctl and then type > scan wifi it get the following error, "Error /net/connman/technology/wifi: Method "Scan" with signature "" on interface "net.connman.Technology" doesn't exist".  When I type ifconfig I get, 

root@beaglebone:/# ifconfig

eth0: flags=-28669<UP,BROADCAST,MULTICAST,DYNAMIC>  mtu 1500

        ether 50:65:83:d9:82:98  txqueuelen 1000  (Ethernet)

        RX packets 0  bytes 0 (0.0 B)

        RX errors 0  dropped 0  overruns 0  frame 0

        TX packets 0  bytes 0 (0.0 B)

        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

        device interrupt 181

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536

        inet 127.0.0.1  netmask 255.0.0.0

        inet6 ::1  prefixlen 128  scopeid 0x10<host>

        loop  txqueuelen 1  (Local Loopback)

        RX packets 2720  bytes 184480 (180.1 KiB)

        RX errors 0  dropped 0  overruns 0  frame 0

        TX packets 2720  bytes 184480 (180.1 KiB)

        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

usb0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

        inet 192.168.7.2  netmask 255.255.255.252  broadcast 192.168.7.3

        inet6 fe80::5265:83ff:fed9:829a  prefixlen 64  scopeid 0x20<link>

        ether 50:65:83:d9:82:9a  txqueuelen 1000  (Ethernet)

        RX packets 807  bytes 126314 (123.3 KiB)

        RX errors 0  dropped 0  overruns 0  frame 0

        TX packets 190  bytes 36851 (35.9 KiB)

        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

usb1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500

        inet 192.168.6.2  netmask 255.255.255.252  broadcast 192.168.6.3

        ether 50:65:83:d9:82:9d  txqueuelen 1000  (Ethernet)

        RX packets 0  bytes 0 (0.0 B)

        RX errors 0  dropped 0  overruns 0  frame 0

        TX packets 0  bytes 0 (0.0 B)

        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

root@beaglebone:/#

I see no wlan.  There is a previous post that descripibes grounding TP1.  I did the following

GND TP1 then run as root: 

dd if=/opt/scripts/device/bone/bbbw-eeprom.dump 

of=/sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/eeprom 

I rebooted but still no wifi.  Just to be sure, I am using a Beaglebone Black Wireless.  Any thoughts?

[Robert Nelson]

This is "one" line.. ^

You can also run:

sudo /opt/scripts/tools/version.sh | grep eeprom

to verify it programmed.

Regards,

--
Robert Nelson
https://rcn-ee.com/

[Stephen Mansfield]

Ok, the error was that it was one line as RobertNielson pointed out.

dd if=/opt/scripts/device/bone/bbbw-eeprom.dumpof=/sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/eeprom

After I did this, connmanctl worked fine and the wifi works fine.

Thanks a bunch....

[sbsa...@gmail.com]

Hello Robert, I know you have a wealth of knowledge on this. I know you have give each piece of that to different folks. I have spent at least 5 hours today and many others over the last week since buying the BBBW to get wifi going. Mind you, I truly am not a complete noobie here. But it would be amazing if someone. Anyone could put a simple 1 page with screenshots of how to get the BBBW with the current image to work? 

[sbsa...@gmail.com]

On Sunday, February 18, 2018 at 1:29:47 PM UTC-5, Stephen Mansfield wrote:

[sbsa...@gmail.com]

So from a fresh BBBW image, you just type:
dd if=/opt/scripts/device/bone/bbbw-eeprom.dump of=/sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/eeprom?

Did you also have to do the GND TP1?  (<- I have no idea what this is or how to do it?) :)

[sten...@gmail.com]

I am having the same problem but using an SD card.  Does the wifi interfere with the SD card interface?

[sbsa...@gmail.com]

Hello James - After looking it seems the new rom needs to know it's the "BBBW" and not a "BBB". :)

How do I get the wireless to work!?

     * Add these 2 lines to your /boot/uEnv.txt

            dtb=am335x-boneblack-wireless.dtb

            enable_uboot_overlays=1

            #disable_uboot_overlay_video=1

[sten...@gmail.com]

Thanks that worked!

On Sunday, February 18, 2018 at 11:29:47 AM UTC-7, Stephen Mansfield wrote: