1) Power up bluetooth chip:

echo 1 > /sys/bus/platform/devices/neo1973-pm-bt.0/power_on
echo 0 > /sys/bus/platform/devices/neo1973-pm-bt.0/reset

2) Load modules:

modprobe ohci-hcd
modprobe hci_usb
modprobe bluetooth
modprobe bnep

3) start hcid:

/etc/init.d/bluetooth start

4) add passkey "1234" to /etc/bluetooth/hcid.conf

5) configure network on phone side:

pand --listen --role NAP --master --autozap
ifconfig bnep0 10.0.5.1 up

6) configure network on PC side:

pand --connect 00:06:6E:16:EB:C6 --service NAP --autozap
ifconfig bnep0 10.0.5.2 up
ping 10.0.5.1

7) Enable ip forwarding:

echo 1 > /proc/sys/net/ipv4/ip_forward

8) Configure NAT on phone

iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE

9) Set routing on PC:

ip route add default via 10.0.5.2 dev bnep0