These are the steps I took to debug this frustrating problem: - wiped the SD card clean by writing "1"s on all 15GB - restored the image from an older known good version download - the /boot sector is seen in the file explorer, documents can be accessed etc. - still UDOO Neo did not respond to any browser, tried MAC OS & Windows, 10, VISTA -Re-installed drivers, restarted Mac => would connect with Firefox under Linux Ubuntu 14.04 LTS - sensors visible - board name can be changed and saved - WiFi section would not wake, no networks were seen, on dashboard or with WiFi analyzer app - would connect to hardwired Ethernet cable, then connect via VNC to router assigned IP address - did update & upgrade procedure ( there were items updated, took a long time under upgrade then crashed, at about 1% RED and Green LEDs on steady ) - cold start, connected again, completed the upgrade, restart, still the WiFi module is not available - using VNC accessed the web configuration menu at http://127.0.0.1/settings/network using Chromium - tried BlueTooth, enabled OK but could not see other devices - run GUI update checker, nothing new found - as a standalone computer it does jump directly to terminal mode but does not start Ubuntu 14 LS - Green LED is on steady red LED flossing occasionally of course tried different SD cards with clean download of image, power cables repeatable on two UDOO Neo cards that I have available. Any suggestions? Somehow I must have turned off WiFi module, was doing experiments with MQTT mosquitto messaging at the time.
If you hardwire and ssh, what does ifconfig tell you? btw. On my Neo I'm using Paho to communicate to a Mosquitto, works nice.
new SD card, no update, identical, ONLY Ubuntu can see 192.168.7.2, ONLY hardwired connection. Code: udooer@udooneo:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:c0:08:8c:0f:c4 inet addr:192.168.1.109 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::2c0:8ff:fe8c:fc4/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:395 errors:0 dropped:0 overruns:0 frame:0 TX packets:342 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:35441 (35.4 KB) TX bytes:351470 (351.4 KB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:44 errors:0 dropped:0 overruns:0 frame:0 TX packets:44 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:4570 (4.5 KB) TX bytes:4570 (4.5 KB) usb0 Link encap:Ethernet HWaddr 4e:71:9e:8c:0f:c4 inet addr:192.168.7.2 Bcast:192.168.7.3 Mask:255.255.255.252 inet6 addr: fe80::4c71:9eff:fe8c:fc4/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:711 errors:0 dropped:0 overruns:0 frame:0 TX packets:670 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:62386 (62.3 KB) TX bytes:358221 (358.2 KB) udooer@udooneo:~$ I cannot see anything unusual there. Thanks for the hint on Paho, I will pass it and try it..
Well, I see no wlan0 or alike. Stupid thing is that I just booted my Neo, and I don't see a WiFi either, not in the http configuration too.
Hmm, no wifi if I insert a older card with an older udoobuntu image.... What happened. Same as http://www.udoo.org/forum/threads/neo-wifi-does-not-working.3012/ ?
ektor5 thanks for your offer to help. Before I discard the card as a hardware problem, I still curious if it can be fixed. I can access the "defective" card by using another SD card configured in another UDOO Neo board and a wired Ethernet connection via VNC the the IP address. I am not a programmer but I can follow instructions, here is dmesg pastebin link: http://paste.ubuntu.com/16788286/ Some colleagues have also been working on this problem and found the following: 3. There was one SD card which was not working in office. We all tried many times to reboot but still it couldn't run the OS. Today we tried to boot the SD card with other Ubuntu image ( different from which we were using earlier) and the SD card works perfectly fine now. We can see the dashboard , GUI, wifi working. Although in Linux terminal we can see the ethernet interface connected to some IP but in dashboard it doesn't shows any ip for ETH, but that's not a problem and that SD card is working on our new udoo neo board with wifi enabled. Not sure if the issue was with the OS image we were using or most probably manufacturing defects in the board present in office. 4. We have tried to change network interfaces file to make static ip but, after rebooting the device the interface file loads with the default setting. We have tried several ways. So, there may be the issue with the image/(provided by UDOO) which is loaded inside the UDOO board and might be its not allowing the changes for ip. Although, they have also given the process for assigning the Static ip for UDOO board but, its not working and we checked many times. We'll try to check the same with another SD card. I purchased the very first kickstarter boards perhaps that helps. Your continued effort will be appreciated as team members are starting too get disenchanted with UDOO Neo and a pushing for another hardware solution. We just need an answer and more boards will be purchased
In my case it was the WiFi chip. With a new board I plugged in the same SD card and it worked right away. Seems that the WiFi/BT chip is easily bricked. Unfortunately, I don't know how as I do not use it in a rugged environment.
