Geeking Out Since 1998

Sharp Zaurus, Bluetooth, GPRS and a Nokia 6310i


The document describes the steps that I took (minus all the wrong ones, and there were many) to get a successful GPRS data connection using my Sharp Zaurus PDA, a Nokia 6310i, a Socket Bluetooth card and an O2 (UK mobile phone operator) GPRS data account, I hope it helps you.

I’m making the assumption that you already have a Sharp Zaurus (Z) (or are intending to buy one) and that you are OK with using Linux on the command line.

Hardware Needed

Sharp Zaurus PDA

Socket Bluetooth card

Nokia 6310i phone


OpenZaurus 3.1RC1 the alternative to the stock ROM that Sharp ships with the Z.

Affix – Bluetooth Protocol Stack for Linux




I placed all the ipks onto a CF card and installed them using aqpkg, you may need to force deps on a few of them. Reboot the Z and you should have a little (grey) Bluetooth icon on your task bar.

an ‘lsmod’ gives me:

root@zaurus /root# lsmod
Module                  Size  Used by
affix_uart_cs           3952   1
affix_uart             20496   0  [affix_uart_cs]
affix                  81584   0  [affix_uart]
serial                 25952   0  [affix_uart_cs]
sharp_mmcsd_m          27424   2
devinfo                 3168   0  (unused)
sa1100_bi              45536   0  (unused)
net_fd                 36016   1  [sa1100_bi]
usbdcore               20448   0  [sa1100_bi net_fd]
usbdmonitor             6112   0

For some reason when I put the card into the CF slot, the card is recognised but I cannot ‘Turn Bluetooth ON’ using the taskbar applet*. So I need to run little script which I have placed in /root/bin

root@zaurus /root# cat /root/bin/bt
cardctl eject 0
modprobe affix_uart_cs
cardctl insert 0
btctl init_uart tlp 115200 ring,ctl,low
btctl up

* apparently this is an issue with hwinit and it will be rectified in future affix releases.

When I run this on my Z, I see the card ‘ejected’ and then ‘inserted’ and the little taskbar icon turns blue. I can also see:

root@zaurus /root# btctl
Affix version: Affix 1.2.6
---->>>> Affix Bluetooth Driver control program <<<


root@zaurus /root# ifconfig
bt0       Link encap:UNSPEC  HWaddr
          UP RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10
          RX bytes:0 (0.0 iB)  TX bytes:0 (0.0 iB)

lo        Link encap:Local Loopback
          inet addr:  Mask:
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:400 (400.0 iB)  TX bytes:400 (400.0 iB)

usbd0     Link encap:Ethernet  HWaddr 40:00:01:00:00:01
          inet addr:  Bcast: Mask:
          RX packets:776 errors:0 dropped:2 overruns:0 frame:0
          TX packets:670 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:44745 (43.6 kiB)  TX bytes:47111 (46.0 kiB)

So we have a bluetooth card plugged in and ready to roll, next we need to make the bluetooth connection.

Firstly make sure that Bluetooth is enabled on your phone. Next let’s see if the Z can see it.

root@zaurus /root# btctl discovery
Searching 8 sec ...
Searching done. Resolving names ...
+1: Address: 00:02:ee:6c:d1:f5, Class: 0x500204, Key: "no", Name: "Nokia 6310i"
    Phone (Cellular) [Object Transfer,Telephony]

Now we need to pair the phone with the Z. The following adds the PIN of ‘1’ (not great I know) for the pairing

root@zaurus /root# btctl addpin 00:02:ee:6c:d1:f5 "1"

Now lets make the connection:

root@zaurus /root# btctl connect 00:02:ee:6c:d1:f5
Connecting to host 00:02:ee:6c:d1:f5 ...
Service found on channel 3

The phone should beep and ask you to accept the connection to ‘Zaurus’ press accept and type in a 1 when asked for the PIN

Connecting to channel 3 ...
Connected. Bound to line 0 [/dev/bty0].

Now we need do is set up a ppp link. The following information is specific to my 02 GPRS data account. The settings I got from other snippets that I found elsewhere did not work with O2 _at_all_ they needed quite a bit of jiggling around.

Firstly backup your /etc/ppp/options, create a new one and put in it the following

# File:
# /etc/ppp/options
name web # the O2 GPRS data username
asyncmap a0000

Next make a new directory called chat and place in it the following 2 files

# File:
# /etc/ppp/chat/gprs-connect
# Description:
# chat script to open O2 GPRS service with Nokia 6310i GPRS phone.
# Modifed from script found at
exec chat -v
TIMEOUT         5
ECHO            ON
ABORT           'nBUSYr'
ABORT           'nERRORr'
ABORT           'nNO ANSWERr'
ABORT           'nNO CARRIERr'
ABORT           'nNO DIALTONEr'
ABORT           'nRINGING....rn'
''              'rAT'
TIMEOUT         12
SAY             "Press CTRL-C to close the connection at any stage!"
OK              'ATE1'
OK              'AT+CGDCONT=,,""'
OK              'ATDT *99#'
TIMEOUT         22
SAY             "nTrying to connect...n"
CONNECT         ''
SAY             "nConnected."
SAY             "nIf the following ppp negotiations fail,n"
SAY             "try restarting the phone.n"

Note these 2 lines

OK              'AT+CGDCONT=,,""'
OK              'ATDT *99#' is the APN and *99# is the number to ‘dial’ see [pdf] for more info.

The second file is a disconnect script:

# /etc/ppp/chat/gprs-disconnect
# send break
exec /usr/sbin/chat -V -s -S
ABORT           "BUSY"
ABORT           "ERROR"
SAY             "nSending break to the modemn"
""              "K"
""              "+++ATH"
SAY             "nPDP context detachedn"

Now create a file /etc/ppp/peers/gprs

# /etc/ppp/peers/gprs
# Settings here should work for a Nokia 6310i and a
# GPRS data account with O2 (ex BTCellnet) in the UK
# Darren Beale -


/dev/bty0 # bluetooth

connect /etc/ppp/chat/gprs-connect
disconnect /etc/ppp/chat/gprs-disconnect

asyncmap a0000

Nearly there, create a file /etc/ppp/pap-secrets with one line:

web      *       web

(This is the O2 username and password for a GPRS data account)

also create /etc/resolv.conf and add the lines:


I’m sure that here any valid nameserver will do, but these IP’s are correct for O2

Finally create the file /etc/ppp/ip-up.d/routing with the line

route add default gateway

again specific to 02.
Now lets try to connect.

At this point I suggest that you make sure syslog is running by typing

/etc/init.d/syslog start

you can now open a second terminal window and ‘watch logread’*

* if you can get OZ3.1 running busybox_0.61.pre-20021208-6 to log to a file please let me know how!

To connect type:

pppd call gprs &

Your phone should say that it is establishing a GPRS connection, if it works, you’ll get teh little ‘G’ in the upper left corner.

root@zaurus ppp# ping
PING ( 56 data bytes
64 bytes from icmp_seq=1 ttl=48 time=2252.4 ms
64 bytes from icmp_seq=2 ttl=48 time=1298.7 ms
64 bytes from icmp_seq=3 ttl=48 time=1357.3 ms
64 bytes from icmp_seq=4 ttl=48 time=1097.4 ms


You’ll need to chmod some of those files so they are executable
Make sure that everything in /etc/ppp is owned by root, i.e.
chmod -R root:root /etc/ppp

Thanks to:
-The OpenZaurus Team and the Affix team for writing the software for free for a similar howto that was useful as a starting point
-Bill Unruh on comp.protocols.ppp for help with the ppp scripts

About the author


Hi, I'm Bealers and I use this blog to share some of the things I learn whilst I'm on my journey. If you're new to the site then you might want to start here. The best place to find me is on Instagram.

By bealers Geeking Out Since 1998

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