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 USB problem with FPCI 
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Joined: Tue Apr 23, 2019 11:46 am
Posts: 7
Post USB problem with FPCI
I'm trying to get a 4G miniPCIe modem to work with FPCI facet (ZTE ZM8620)

It works for some time but then:
Code:
[   82.001617] usb 1-8.2: new high-speed USB device number 7 using xhci_hcd
[   82.110965] usb 1-8.2: New USB device found, idVendor=19d2, idProduct=0396
[   82.110972] usb 1-8.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   82.110976] usb 1-8.2: Product: ZTE WCDMA Technologies MSM
[   82.110980] usb 1-8.2: Manufacturer: ZTE,Incorporated
[   82.110983] usb 1-8.2: SerialNumber: 0123456789ABCDEF
[   82.128677] option 1-8.2:1.0: GSM modem (1-port) converter detected
[   82.128980] usb 1-8.2: GSM modem (1-port) converter now attached to ttyUSB0
[   82.129285] option 1-8.2:1.1: GSM modem (1-port) converter detected
[   82.129509] usb 1-8.2: GSM modem (1-port) converter now attached to ttyUSB1
[   82.129923] option 1-8.2:1.2: GSM modem (1-port) converter detected
[   82.130128] usb 1-8.2: GSM modem (1-port) converter now attached to ttyUSB2
[   83.828310] usb usb1-port8: disabled by hub (EMI?), re-enabling...
[   83.828471] usb 1-8: USB disconnect, device number 5
[   83.828476] usb 1-8.1: USB disconnect, device number 6
[   83.829507] usb 1-8.2: USB disconnect, device number 7
[   83.829757] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[   83.829779] option 1-8.2:1.0: device disconnected
[   83.830039] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[   83.830053] option 1-8.2:1.1: device disconnected
[   83.830323] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[   83.830337] option 1-8.2:1.2: device disconnected
[   84.093448] usb 1-8: new full-speed USB device number 8 using xhci_hcd
[   84.481450] usb 1-8: device descriptor read/64, error -71
[   84.709437] usb 1-8: device descriptor read/64, error -71
[   85.205387] usb 1-8: new full-speed USB device number 9 using xhci_hcd
[   85.593389] usb 1-8: device descriptor read/64, error -71
[   86.505339] usb 1-8: device descriptor read/64, error -71
[   86.613384] usb usb1-port8: attempt power cycle
[   87.257256] usb 1-8: new full-speed USB device number 10 using xhci_hcd
[   87.257457] usb 1-8: Device not responding to setup address.
[   87.465429] usb 1-8: Device not responding to setup address.
[   87.673219] usb 1-8: device not accepting address 10, error -71
[   88.061201] usb 1-8: new full-speed USB device number 11 using xhci_hcd
[   88.061395] usb 1-8: Device not responding to setup address.
[   88.269366] usb 1-8: Device not responding to setup address.
[   88.477172] usb 1-8: device not accepting address 11, error -71
[   88.477395] usb usb1-port8: unable to enumerate USB device

eventually it gets unaccessible, doesn't restart and later on disappears from /dev
after some time it does it during the boot

Sometimes if I reinstall a fresh install it starts to work again, until it goes in the same loop

on another fitlet2 sometimes the modem doesn't even come up(using same FACET as with the other fitlet2). I tested the FPCI Facet with a M2 wifi module and a mPCIe and it works. Is this fitlet2 faulty ?

I tried both fitlet2 and 3 different Facets with LiveUSB Linux mint and the same things happens

also one of the FACETs has 3 leds and the others don't. Is there other difference between them?

Fitlet2 E3950
BIOS is FLT2.0.46.01.00
FPCI Facet v1.0


Thu May 09, 2019 2:36 pm
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Joined: Mon Dec 25, 2017 4:21 pm
Posts: 316
Post Re: USB problem with FPCI
According to the issue described, there may be a HW problem with your machine.
Please contact us via email for RMA service:
fitpcsupport@compulab.co.il


Mon May 13, 2019 11:02 am
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