"Alternate browser" to have Bluez/Blueman support browsing files in a mobile

Situation

Using Ubuntu 16.04

I managed to activate the connection between a desktop computer and a Nokia 206 (with Bluetooth standard 2.1 EDR) mobile via a Bluetooth dongle.

Please take note:

• The hardware side looks fine.
• Sending individual files to the mobile works as expected.
• Sending individual files from the mobile works as expected.
• It is the capability of file browsing from the computer into the mobile that misses out.

Issue

I then make steps towards browsing the files on the mobile. It starts off well with a progress bar completing its swipe, but at the next step I get the message

Failed to launch default browser
The specified location is not supported
You can enter an alternate browser in service settings

Research

I found an earlier mention of this issue in Ubuntu 16.04 iPhone iOs 10 Bluetooth Devices not allowing Browse function (2016)

From the Blueman project https://github.com/blueman-project/blueman/wiki/Integrations#obex-file-transfer I found

blueman can use a file browser for browsing files on a remote device. The command for this can be customized in the local services settings.
Most file browsers provide this OBEX FTP support using gvfs which in terms makes use of obex-data-server. This works only with BlueZ 4 and was thus removed from gvfs completely in version 1.23.92.
blueman 2.1 will drop support for browsing files.
[last edited 2016]

Now: I have Bluez 5.37, gvfs 1.28.2, Blueman 2.0.4. Even though I cannot rely on gvfs, support for browsing should be still there -- see Blueman project changelog.

I found out the window Local Services down Bluetooth Devices:

Questions

Question 1 What could I set in the advanced options to activate the alternate browser?

Question 2 If none, are there alternatives to Blueman/Bluez for receiving files in the computer instead of sending them from the mobile one by one?

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Appendix on libraries

This is the snapshot of the Synaptic search on the theme bluez, the tools to manage Bluetooth devices for linux:

Regarding obex that is OBject EXchange protocol

None of the obex-related tips in

• Ubuntu 17.04 Sending/Receiving files by Bluetooth not working
• Error : Could not display "obex://" when paired with a Nokia 3110c

helped