Enable wifi (connman)

How do you mean?

Since the error points to a possible problem with the SD (memory) card, I’d suggest trying a new one.

Out of the four power supplies currently plugged into the board they are rated the following:

5.1V 2.5A (official raspberry stamped plug)
Another one that is the first except US plug
5.2V 3000ma powering external hard drives
12V 2A also providing power to the hard drives through an official raspberry pi usb hub.

Tried the update mentioned by Sam (post #3) in this thread:

however it did not work for me! Just used

watch vcgencmd measure_temp

and noticed my pi is running at 61.2’C.

At the moment it is still 27.6’C in Adelaide (South Australia).

Installing and running lshw displays the following

osmc-tobias
    description: ARMv7 Processor rev 4 (v7l)
    product: Raspberry Pi 3 Model B Rev 1.2
    serial: 00000000f3b2e353
    width: 32 bits
    capabilities: smp
  *-core
       description: Motherboard
       physical id: 0
     *-cpu:0
          description: CPU
          product: cpu
          physical id: 0
          bus info: cpu@0
          size: 600MHz
          capacity: 1200MHz
          capabilities: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva                                                                              idivt vfpd32 lpae evtstrm crc32 cpufreq
     *-cpu:1
          description: CPU
          product: cpu
          physical id: 1
          bus info: cpu@1
          size: 600MHz
          capacity: 1200MHz
          capabilities: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva                                                                              idivt vfpd32 lpae evtstrm crc32 cpufreq
     *-cpu:2
          description: CPU
          product: cpu
          physical id: 2
          bus info: cpu@2
          size: 600MHz
          capacity: 1200MHz
          capabilities: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva                                                                              idivt vfpd32 lpae evtstrm crc32 cpufreq
     *-cpu:3
          description: CPU
          product: cpu
          physical id: 3
          bus info: cpu@3
          size: 600MHz
          capacity: 1200MHz
          capabilities: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva                                                                              idivt vfpd32 lpae evtstrm crc32 cpufreq
     *-memory
          description: System memory
          physical id: 4
          size: 747MiB
  *-usbhost
       product: DWC OTG Controller
       vendor: Linux 4.9.29-13-osmc dwc_otg_hcd
       physical id: 1
       bus info: usb@1
       logical name: usb1
       version: 4.09
       capabilities: usb-2.00
       configuration: driver=hub slots=1 speed=480Mbit/s
     *-usb
          description: USB hub
          physical id: 1
          bus info: usb@1:1
          version: 2.00
          capabilities: usb-2.00
          configuration: driver=hub maxpower=2mA slots=5 speed=480Mbit/s
        *-usb:0
             description: Generic USB device
             physical id: 1
             bus info: usb@1:1.1
             version: 2.00
             capabilities: usb-2.00
             configuration: driver=smsc95xx maxpower=2mA speed=480Mbit/s
        *-usb:1
             description: Generic USB device
             product: RTL2838UHIDIR
             vendor: Realtek
             physical id: 5
             bus info: usb@1:1.5
             version: 1.00
             serial: 00000001
             capabilities: usb-2.00
             configuration: driver=dvb_usb_rtl28xxu maxpower=500mA speed=480Mbit                                                                             /s
  *-network
       description: Ethernet interface
       physical id: 2
       logical name: eth0
       serial: b8:27:eb:b2:e3:53
       size: 100Mbit/s
       capacity: 100Mbit/s
       capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autone                                                                             gotiation
       configuration: autonegotiation=on broadcast=yes driver=smsc95xx driverver                                                                             sion=22-Aug-2005 duplex=full firmware=smsc95xx USB 2.0 Ethernet ip=10.1.1.193 li                                                                             nk=yes multicast=yes port=MII speed=100Mbit/s

You are clearly missing the wifi, so I believe hardware issue (or power)
This is how lshw shows the wireless interface (shows DISABLED as i disabled it in config.txt)

  *-network:0 DISABLED
       description: Wireless interface
       physical id: 2
       logical name: wlan0
       serial: b8:27:eb:81:06:6c
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=brcmfmac driverversion=7.45.41.46 firmware=01-f8a78378 multicast=yes wireless=IEEE 802.11

So I so look in the “confilg.txt” filr for comfimation?

I doubt any issue with your config.txt (I just wrote that to not confuse with the “DISABLED”) but you can recheck.
As mentioned I guess hardware issue unless you get it reliable shown with a clean install of raspbian or OSMC.

Yeah, I just tested it but using the Raspbian image from my other pi that has both the Ethernet and Wifi work. However, when I put sd card in the OSMC pi only Ethernet comes up when I scan for the ip address using a scanner whereas on the other pi addresses for both Ethernet and Wifi show up.

So hardware issue