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10 posts

Wannabe Geek


Topic # 794 10-Dec-2003 02:28
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I was trying to use GPRS via a Nokia 6310i from an iPAQ 4150 over BT. I had it all working from the 4150, but the desktop BT could not see the phone (ver. 5.22). Nokia suggested to get the phone firmware upgraded to 5.51, which I did, and now the desktop is working over BT+GPRS, but the 4150 is unable to connect!

The phone is fine using WAP and also GPRS from the desktop, but now gives an error "subscribe to GPRS first" when attempting a connection from the iPAQ. I have seen a number of other people reporting this behaviour.

To cut a long story short, here is the solution:

The 4150 (and probably all WM2003 PPCs) uses an init string of ATE0V1&C1&D2 which used to work under Nokia firmware 5.22 but stops working at 5.50 on.

The laptop BT modem driver (IVT BlueSoleil) uses a slightly different string: AT&FE0V1&D2S0=0S7=10 which clearly works on my laptop.

On the PDA, this is located in the registry at HKLM\Drivers\Unimodem\Init\2 and can easily be changed by a registry editor. After this change, GPRS is working flawlessly!

Now if only someone had a proper VPN client...

Enjoy.

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2 posts

Wannabe Geek


  Reply # 4369 22-Mar-2004 10:23
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Hi Tomn,

I have an iPAQ 4155 and 6310i with v.5.50. I tried your solition but still not works. Should i upgrade to 5.51 from 5.50? is this reason? Please help.

Thanks



10 posts

Wannabe Geek


  Reply # 4370 22-Mar-2004 11:20
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Hi,

No you should not need the upgrade, although it would not hurt. It is probably some other setting, check out http://www.taniwha.org.uk/gprs.html for more help on settings, or even the BT Guides on this forum.

Cheers...

2 posts

Wannabe Geek


  Reply # 4375 22-Mar-2004 20:46
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Hi Tomn,

Should i soft or hard reset 4155 after changed string in registry? Still not works :((

Thanks.



10 posts

Wannabe Geek


  Reply # 7178 14-Jul-2004 00:15
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A small update: when I installed the 4150 ROM update SP27939 recently, GPRS stopped working. Bluetooth worked flawlessly, so I played around with the initialisation strings. The only one that worked in the end was setting HKLM\Drivers\Unimodem\Init\2 to "AT&F<cr>" instead of the previous suggestion (the string needs to be exactly as shown).



I suspect some kind of Unimodem timing issue, but I am not complaining. GPRS is working fine now, and I have used it repeatedly with my 6310i.



Hope this helps!


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