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

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

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