Asus USB BT500


Just bought the Asus usb bt500 bluetooth adapter hoping it would work with the mod duo but I get unsupported. Is there anyway for me to get that to work?


It seems that bluetooth version 5 devices are wrongly set as unsupported.
Do you know how to ssh into the unit?

Running this command after plugging in the bluetooth dongle would give us some information on the issue.

hciconfig -a

Let me know if you need help on that. Thanks!

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Is it ssh root@ ?


Type: BR/EDR Bus: USB
BD Address: F0:2F:74:6A:FB:B7 ACL MTU: 1021:6 SCO MTU: 255:12
RX bytes:904 acl:0 sco:0 events:37 errors:0
TX bytes:390 acl:0 sco:0 commands:37 errors:0
Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Name: ‘RTK_BT_5.0’
Class: 0x000000
Service Classes: Unspecified
Device Class: Miscellaneous,
HCI Version: (0xa) Revision: 0xb
LMP Version: (0xa) Subversion: 0x8761
Manufacturer: Realtek Semiconductor Corporation (93)

oh I see! the “HCI Version” is an hexadecimal number, not decimal.
I think I know how to fix this, will add a task for myself before 1.10-RC2 is out, thanks!

For now you can ssh into the unit, remount / rw and edit /sbin/net.bnep to remove the check for 3.0 BT stuff.
I will rework that part to take into account hexadecimal numbers.
Or alternatively, wait a few days for RC2.


Thanks man!

So does this device definitely support networking? All the other adapters I looked at only supported audio profiles? I can’t even be sure from the official tech specs, which interestingly mention Linux support, but this Reddit thread strongly suggests that Asus’s idea of Linux support is an awful lot weaker than what most other people would consider support …

Having said that, it’s only £15 on Amazon so I think I will order one to try anyway!


Hi! Not sure if this thread is dead, but I prefer to post it here so maybe somebody with a similar problem can see it.

I have a BT dongle (5.0) and as said above, it says “Unsupported”.

In my case, with hciconfig I see more or less the same as above.
Captura de pantalla 2021-09-12 a las 18.13.10

Could you please explain how to do the " remount / rw and edit /sbin/net.bnep to remove the check for 3.0" part, @falkTX ?

I’m still noob with Linux.

Thank you!

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