Question N200 usb connection loop when in 'fastbootd' mode

[lurkio]

I can connect to the phone no problem in fastboot mode, but in fastbootd mode I can see it constantly connecting and disconnecting in dmesg.

I've added spaces in the output below so it's easier to read. What the heck is going on? I can't move to flashing DE2117 if I can't get it to stay connected.

[38977.628840] usb 1-1: new high-speed USB device number 10 using xhci_hcd
[38977.782068] usb 1-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 5.04
[38977.782085] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[38977.782094] usb 1-1: Product: DE2118
[38977.782100] usb 1-1: Manufacturer: OnePlus
[38977.782106] usb 1-1: SerialNumber: 5cbbcabc
[38978.804973] usb 1-1: USB disconnect, device number 10

[38982.540853] usb 1-1: new high-speed USB device number 11 using xhci_hcd
[38982.690310] usb 1-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 5.04
[38982.690324] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[38982.690331] usb 1-1: Product: DE2118
[38982.690336] usb 1-1: Manufacturer: OnePlus
[38982.690341] usb 1-1: SerialNumber: 5cbbcabc
[38983.712907] usb 1-1: USB disconnect, device number 11

[38987.444919] usb 1-1: new high-speed USB device number 12 using xhci_hcd
[38987.594218] usb 1-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 5.04
[38987.594232] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[38987.594239] usb 1-1: Product: DE2118
[38987.594245] usb 1-1: Manufacturer: OnePlus
[38987.594249] usb 1-1: SerialNumber: 5cbbcabc
[38988.617117] usb 1-1: USB disconnect, device number 12

[38992.361028] usb 1-1: new high-speed USB device number 13 using xhci_hcd
[38992.510442] usb 1-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 5.04
[38992.510456] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[38992.510463] usb 1-1: Product: DE2118
[38992.510469] usb 1-1: Manufacturer: OnePlus
[38992.510473] usb 1-1: SerialNumber: 5cbbcabc
[38993.529038] usb 1-1: USB disconnect, device number 13

 

[ethical_haquer]

I can connect to the phone no problem in fastboot mode, but in fastbootd mode I can see it constantly connecting and disconnecting in dmesg.

I've added spaces in the output below so it's easier to read. What the heck is going on? I can't move to flashing DE2117 if I can't get it to stay connected.

[38977.628840] usb 1-1: new high-speed USB device number 10 using xhci_hcd
[38977.782068] usb 1-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 5.04
[38977.782085] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[38977.782094] usb 1-1: Product: DE2118
[38977.782100] usb 1-1: Manufacturer: OnePlus
[38977.782106] usb 1-1: SerialNumber: 5cbbcabc
[38978.804973] usb 1-1: USB disconnect, device number 10

[38982.540853] usb 1-1: new high-speed USB device number 11 using xhci_hcd
[38982.690310] usb 1-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 5.04
[38982.690324] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[38982.690331] usb 1-1: Product: DE2118
[38982.690336] usb 1-1: Manufacturer: OnePlus
[38982.690341] usb 1-1: SerialNumber: 5cbbcabc
[38983.712907] usb 1-1: USB disconnect, device number 11

[38987.444919] usb 1-1: new high-speed USB device number 12 using xhci_hcd
[38987.594218] usb 1-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 5.04
[38987.594232] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[38987.594239] usb 1-1: Product: DE2118
[38987.594245] usb 1-1: Manufacturer: OnePlus
[38987.594249] usb 1-1: SerialNumber: 5cbbcabc
[38988.617117] usb 1-1: USB disconnect, device number 12

[38992.361028] usb 1-1: new high-speed USB device number 13 using xhci_hcd
[38992.510442] usb 1-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 5.04
[38992.510456] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[38992.510463] usb 1-1: Product: DE2118
[38992.510469] usb 1-1: Manufacturer: OnePlus
[38992.510473] usb 1-1: SerialNumber: 5cbbcabc
[38993.529038] usb 1-1: USB disconnect, device number 13

Try a different USB cable or port.

 

[lurkio]

Try a different USB cable or port.

Fair suggestion. Just tried, 3 different cables in 3 different ports; one front port, 2 back ports (one from each 'stack').

Going to try my mint laptop, see if cycles the connection there too...

 

[lurkio]

The bahvior is the same on the mint laptop. It's an HP 11th gen intel, my main is a 7th gen. Totally different chipsets, that's why I mention it. Probably a similar driver, but I cant think why that would matter. Mint isnt doing anything special with USB, so I assume the OS really isnt to blame. :/

 

[ethical_haquer]

The bahvior is the same on the mint laptop. It's an HP 11th gen intel, my main is a 7th gen. Totally different chipsets, that's why I mention it. Probably a similar driver, but I cant think why that would matter. Mint isnt doing anything special with USB, so I assume the OS really isnt to blame. :/

Oh well, I guess you'll have to just search for a solution. Sorry I couldn't find a solution.