Hi guys, any chance of a little bit of help please - I am starting to pull may hair out 
I have a Telit LE9104-EU on a raspberry Pi and no matter what i try, I cannot get it to connect to cellular. It worked some months back, it then went into a box and now its not wanting to connect again.
The interface does not show up in Sixfab core dashboard (only ethernet) and I see this cycle going on in DMESG
155.644263] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB4
[ 164.821126] usb 1-1.1: USB disconnect, device number 3
[ 164.821503] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 164.821561] option 1-1.1:1.0: device disconnected
[ 164.821745] cdc_ether 1-1.1:1.2 wwan0: unregister ‘cdc_ether’ usb-0000:01:00.0-1.1, Mobile Broadband Network Device
[ 164.841133] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 164.841211] option 1-1.1:1.4: device disconnected
[ 164.841530] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 164.841587] option 1-1.1:1.5: device disconnected
[ 164.841891] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 164.841944] option 1-1.1:1.6: device disconnected
[ 164.842229] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 164.842282] option 1-1.1:1.7: device disconnected
[ 177.012707] usb 1-1.1: new high-speed USB device number 4 using xhci_hcd
[ 177.125799] usb 1-1.1: New USB device found, idVendor=1bc7, idProduct=1206, bcdDevice= 3.18
[ 177.125827] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 177.125844] usb 1-1.1: Product: LE910C4-EU
[ 177.125859] usb 1-1.1: Manufacturer: Android
[ 177.125873] usb 1-1.1: SerialNumber: 0123456789ABCDEF
[ 177.138614] option 1-1.1:1.0: GSM modem (1-port) converter detected
[ 177.139071] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0
[ 177.148844] cdc_ether 1-1.1:1.2 wwan0: register ‘cdc_ether’ at usb-0000:01:00.0-1.1, Mobile Broadband Network Device, c6:92:b5:3f:84:c1
[ 177.151576] option 1-1.1:1.4: GSM modem (1-port) converter detected
[ 177.152037] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1
[ 177.152596] option 1-1.1:1.5: GSM modem (1-port) converter detected
[ 177.153060] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2
[ 177.153661] option 1-1.1:1.6: GSM modem (1-port) converter detected
[ 177.154119] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB3
[ 177.154721] option 1-1.1:1.7: GSM modem (1-port) converter detected
[ 177.155140] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB4
I just updated the 9104 to latest firmware - this went ok, shows the latest firmware in the dashboard, but it made no difference.
I tried powering the Pi using its own power supply as well as powering using external supply of another hat - no difference.
(for info, i did wipe/reinstall the Pi SD card - that is the only change I can think of since it last worked).
Please help 