No Connection to Mobile Phone with MTP via USB

[Didi]

My configuration:

My Host-OS is Windows 8.1 and my VirtualBox is V5.1.22r115126 including its extension pack and installed USB-controller.

The problem:

While my Samsung Galaxy Note 4 (SM-N910F) with Android 6.0.1 perfectly connects through USB with MTP to any native installed Mint or Ubuntu Linux OS, it does not connect to any Mint or Ubuntu if it runs virtual under VB. The file browser of the guest system shows the mobile phone but doesn't show any files. It further appears to hang. All other USB devices work well.

The phone is automatically detected as follows: Name: SAMSUNG_Android[0400] Manufacturer: 04e8 Product ID: 6860 Revision no: 0400 Manufacturer: SAMSUNG Product: SAMSUNG_Android Serial No.: 55xxxx7b Port: Remote: No Special observation: Two virtual Guest-OS (both MINT) were running. After I tried to connect my mobile phone without success to one Guest-OS, I shut the Guest-OS down and suddenly found that the phone was connected to the remaining Guest-OS as MTP-device and showed all directories and files as it should be and everything worked fine.

Conclusion:

VB has a bug in handling USB MTP devices or certain USB MTP devices (like my Samsung Galaxy Note 4).

I would be grateful if you could provide a solution or if you book and confirm this as a VB bug.

Didi

[dandre]

Replying to Didi:

I have a similar issue. With all Samsung devices. I can establish a MTP connection, but then the device displays a confirmation dialog. Clicking "Allow" causes the MTP connection to reset back to the host and the VM loses the previously okay connection.

If I do not need to use the device UI, I can establish and keep the MTP connection with the confirmation dialog displaying.

My configuration:

My Host-OS is Windows 8.1 and my VirtualBox is V5.1.22r115126 including its extension pack and installed USB-controller.

The problem:

While my Samsung Galaxy Note 4 (SM-N910F) with Android 6.0.1 perfectly connects through USB with MTP to any native installed Mint or Ubuntu Linux OS, it does not connect to any Mint or Ubuntu if it runs virtual under VB. The file browser of the guest system shows the mobile phone but doesn't show any files. It further appears to hang. All other USB devices work well.

The phone is automatically detected as follows: Name: SAMSUNG_Android[0400] Manufacturer: 04e8 Product ID: 6860 Revision no: 0400 Manufacturer: SAMSUNG Product: SAMSUNG_Android Serial No.: 55xxxx7b Port: Remote: No Special observation: Two virtual Guest-OS (both MINT) were running. After I tried to connect my mobile phone without success to one Guest-OS, I shut the Guest-OS down and suddenly found that the phone was connected to the remaining Guest-OS as MTP-device and showed all directories and files as it should be and everything worked fine.

Conclusion:

VB has a bug in handling USB MTP devices or certain USB MTP devices (like my Samsung Galaxy Note 4).

I would be grateful if you could provide a solution or if you book and confirm this as a VB bug.

Didi

[Socratis]

Typically the bugtracker is not the place for configuration discussions. Please read the following FAQ: ​USB basics and troubleshooting. If you still have a problem after reading through the whole thing, please head to the ​VirtualBox forums, select an appropriate section and follow the advice of the last post of the FAQ (#8 Asking for help). Be sure to mention the ticket number.