MTP does not work when connected via USB in Lineage OS.

[Aeong 4]

When I connect my device to my Windows PC via USB, I can't transfer files because the MTP option is not enabled.

I see the QX-1050 entry in Windows Explorer, but when I open it, nothing shows up.

The cable is not broken because USB debugging works.

Is there anyone else having the same issue as me?
I'm using Lineage OS 21.0.

[Hook 2,943]

The way Android works now, when you first connect your phone to a PC via USB, it is in charge only mode.  There should be a notification (very small print) near the bottom of the notification pull-down that tells you this and says to tap for more options.  When you tap, a full screen list of options pop up and you can select "File Transfer). 

LOS is the same as it uses the standard Android functions.

[Aeong 4]

 

@Hook

Of course I know that. But there was no such notification. Even when I opened Settings -> Connected Devices -> USB, 'File Transfer' was disabled.

[Hook 2,943]

10 hours ago, Aeong said:

 

@Hook

Of course I know that. But there was no such notification. Even when I opened Settings -> Connected Devices -> USB, 'File Transfer' was disabled.

Then I'm stumped.  On my Pro1x using LOS 21, when I connect to my Windows computer, there is a notification at the very bottom of my notification just as I described to you. and all options are available in settings -> connected devices -> USB

[EskeRahn 5,427]

Could it be driver issue on the PC/cable side? That is the phone does not think the connected PC supports MTP, and hence does not offer the option? Try on another PC and/or different cable and see if you get the same.

[Aeong 4]

I tried using a different cable, a different PC, and rebooting, but nothing worked.

It works fine now. I think it was a temporary device error.

Thanks everyone for your help.