[Question] Bluetooth PAN network on Jelly Bean and later

Hello.
I am using n7000 like media device, music, games, video. SIM card is not installed. Most of the time I am share internet from my iPhone by Bluetooth PAN.

As I understood starting from Jelly Bean google replaced BlueZ Bluetooth stack by BlueDroid from Broadcom.
Problem is that Bluetooth PAN doesn't work on any JB rom ( stock custom or AOSP) that is why I am stack with ICS roms.

I tried to troubleshoot this issue, but unsuccessful.

By default n7000 receives ipv6 IP address from iPhone.

Dhcpcd bt-pan

makes possible to receive ipv4 address. So it possible to ping 8.8.8.8.

getprop net.dns1

Provides DNS of priveously connected WIFI network.

Setprop net.dns1 8.8.8.8

resets DNS settings, but name resolving still doesn't work.

QUESTIONS:

How to push OS to renew DNS settings?

How to rollback Bluetooth stack to BlueZ on JB and KIT-kat ROMs?

Ps
I am apologize for my bad English. :)


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