[cheekoo]

HI all ,

Nokia N95 modem driver is not updated by nokia .

When the driver is installed for nokia modem then its listed as either GSM nokia USB modem or nokia USB modem resulting in giving the baud rate which is same for a 56Kbps modem.

I will give u people an example which is as follow.

Maximum baud rate for a com port for a modem in XP & Vista is 921600 K bits/second

so 921600 bits/second devide by 1000 = 921.6 K bits/second.

Now if for example the HSDPA is getting about 1.2Mbps ( downlaod ) from cell(a cellular pole) then that is in Mega Bits/secodns.

Now 1.2 Mega bits/second multiply by 1000 = 1200000 bits /seocnd

&1200000 bits/second devide by 1000 = 1200 K bits /second .


So that means if Nokia N95 is connected via USB then its not able to pass data to a com port at more than

921.6 kbits/second even if its getting 1.2 M bits /second or higer from the cell ( cellular pole).

Now for that data to get processed by CPU will change into bytes.

So 921600 bps( or 921.6kbps) devide by 8 = appox 112.5KBs.


I have tested other devices on the my laptop like T mobile MDA vario II & that makes a 10Mbps connection with PC so its OK for it to easily pass a data to PC which is lower than 10Mbps.

I e-mailed Nokia about this & they just simply advised me to download the cable modem driver from their web site .

I have downloaded all drivers & none of them registers NOKIA N95 as HSDPA modem in device manager because the driver is only written to act as a GSM modem .


Now if nokia they are not gonna write a new driver for N95 then only way to get more connection spped with PC is to amend the registry for that driver which i am working on .

Here is another link to prove that USB or PCI express HSDPA/HSUPA cards connect with PC at about 7.2Mbps.

http://www.tweaktown.com/reviews/1175/3.


I hope all nokia N95 lovers care about this topic.A little help , comments & advice would be appreciated.

Regards.

Mansoor.

[sbak]

I and others (takyin, marknz, tweets, _dsk_) have the same problem.

You would hope Nokia could sort out this issue by simply releasing a new driver that allows you to set a higher speed on the USB port.

The USB Driver (GSM modem) should be limited only by the USB 2.0 maximum speed and it shameful that the settings of a software driver cannot be set to the maximum of the hardware.

I too will try to dig into the registry to find out if it can be tweeked to change this setting. If you find it before me please lets us know and if you could be so kind to post your results on the following discussions I'm sure everyone would be grateful.

Discussions Main Page > Nseries & Smartphones > N95 as modem
/discussions/board/message?board.id=smartphones&message.id=32877&view=by_date_ascending&page=2

Discussions Main Page > Nseries & Smartphones > USB Modem connection speed HSPDA 480kbs
/discussions/board/message?board.id=smartphones&message.id=35413&query.id=114148#M35413


All the best
Simon

[jonomac]

Hi,
So does anyone know if there's been any progress on a modem driver update for the N95 or is the maximum port speed still limited to 460kbps, using the Nokia Modem Driver Version 6.84.0.0

There's not much point having access to HSDPA in the UK if when connecting to your laptop you're limited to this much slower speed due to the driver throttling the speed.

Cheers, j

[jonomac]

OK I just updated to version 6.85.4.14 but the modem driver is still limited to maximum speed of 460kbps.

[sbak]

I've had no luck finding the registry setting. All that I've discovered is that "modemmui.dll" which is part of the Windows operating system is the dialogue box where you set the maximum speed.

However I did try a broadband test site and changing the maximum speed setting did not seem to make any difference. In fact the speed report was in excess of the maximum speed configured.

I would be curious what everyone measures on a speed tester.

I think the best broadband test site is http://gadgetshow.five.tv/jsp/speed_test.htm

[jonomac]

OK, just tested using the Gadgetshow link:
http://gadgetshow.five.tv/jsp/speed_test.htm

I'm getting between 1150 and 1350kbps (144 and 168 KB/sec) download and always 300kbps (37.5 KB/sec) upload using T-Mobile UK HSDPA, so the speed listed by the windows driver of 460kbps doesn't appear to be a limiting factor, which is good news!

[cheekoo]

Hi all,

Ok i worked very hard to learn how to write a driver & i am very close of releasing a Nokia N95 driver which will show 3.6 Mbps in the connection speed.

Still a lot of People are confused with the HSDPA connectivity and talking about the connection downstream/upload speed /download rate etc (the network speed)

I am talking about the speed of data which travels between Nokia N95 HSDPA modem and Computer (port ) running on any Microsoft OS.

I want to thank sbak for looking & researching for editing the driver in windows registry >sbak is the only person who understands the concept.

I am trying to develop this driver because N95 is such a Hi tech device of its time but with poor written driver and i like it a lot & Nokia N96 will hit the market soon. Also this problem is seen in many other HSDPA phones which connect to computer VIA USB 2.0 but not in HSDPA express or standard PCMCIA cards because they act like a network card.

Ok a little explanation again so you guys can better understand the concept.

1: If you guys want to check the connection speed of N95 HSDPA with the cellular pole of your cell provider then the best site is http://www.speedtest.net/ and its global which means you can check your speed from any where in the world. Now this speed will tell you the download speed you are getting from your cellular ISP server & up to what speed you can upload the data or send the data to the ISP server. (This is another topic).

2: Now lets say your Nokia N95 HSDPA is connected to the cell pole at 3.6 Mbps which will mean you are getting download speed near about 3.6 Mbps(3600000 bps){ 439.45 KBps }& upload is always near half or less of download speed.

Ok I will explain what is the function of a driver related to this topic.

A driver is a communicator between N95 HSDPA modem & Computer or in other words you can say it is the middle man which deals with the transfer rate of the data between Hardware (modem) & Computer (hardware /software)

An example is as follow if the connection between Nokia N95 HSDPA & cellular pole has a download speed of 3.6Mbps and the data downloaded from the Cellular ISP has to be stored on the Hard disk of the computer then how it will affect the delay of data due to the Nokia N95 HSDPA driver.

Nokia has written the N95 HSDPA modem driver to transfer data maximum at 921600bps = 921.6 Kbps to the computer. This means that when the Nokia N95 HSDPA modem is getting 3.6 Mbps from the cellular pole, it is transferring data to Computer at only 921.6 Kbps so when the data reaches RAM to be processed by CPU & stored onto the Hard disk then it is converted into Bytes. So if we convert 921.6 Kbps to Kilobytes = 112.5 KBps.

Explanation HSDPA speed = 3.6 Mbps (3600000 bps) minus 921.6 Kbps (921600 bps) = 2.678 Mbps (326.95 KBps)

So data is 2.6784 Mbps late to reach the Hard drive of the computer because of the bad written driver or in other word 326.95 Kbps of data is written late on the Hard drive because of the Nokia N95 HSDPA USB driver.

This problem is easily fixable if one can change the maximum speed bps from 921600bps (921.6 Kbps) to 3600000bps (3.6 Mbps) in the Nokia N95 HSDPA modem driver but that is the hardest part which i am working on.


Nokia N95 connects to computer via a USB 2.0 cable which is capable of transferring the data at 480 Mbps which is much higher than 3.6 Mbps.


Conclusion:
I am talking about the transfer and connection speed of data between Nokia N95 HSDPA USB modem and computer not the connection/transfer speed of Nokia N95 HSDPA USB modem and the cellular pole.

Transfer rate between N95 HSDPA modem & cellular pole is not a issue.

USB 2.0 cable carrying/transferring the data at 480 Mbps is not a issue.

But when the driver of the Nokia N95 HSDPA modem forwards the data to the opened com port of windows which is allocated to Nokia N95 HSDPA , it only transfers the data at the speed of 921600 bps (921.6 Kbps) which is a problem .

Soon a custom built driver will prove it.

Please feel free to comment on this topic.

Regards

Mansoor.

[h3llb3nt]

Finally a person that gets it right. I really hope you manage to get this driver out soon.

Just a question, will this driver of yours have support for a 6110 Navigator? Although I will able to use the N95 one as well.

Best of luck.

PS. don't know if this will help but I found the following registry key:

HKLM\SYSTEM\ControlSet001\Control\Class\{4D36E96D-E325-11CE-BFC1-08002BE10318}\0000

which has a MaximumPortSpeed setting.

[bwiehahn]

I have to agree, "Finally somebody gets it!".

Speaking to Nokia support people and your network provider you get nothing but stupid answers. Every time I get told that it depends on the area I am in etc etc.

I have a 6120C experiencing the same problem and thus far no real action from anywhere. I read more and more of similar problems on the internet, but no solutions thus far. My network provider has even told me now that this phone only supports up to 1.8Mbps - so I sent them the Nokia data sheet.

I sincerely hope you get it right soon and show all of them how it should be done.

[cheekoo]

HI ,

That is the correct registry entry.

Regards ,

Mansoor.

[palmy]

You mean you managed to link the PC/notebook and the N95 long enough to use them?

I tried both bluetooth and USB connecting the N95 to work. Frustrating thing is the connection fails after a while. Reconnecting by rebooting both PC and phone just works at times. When it (Bluetooth/USB modem mode) doesn't, I have had to setup PC Suite again just to get it working, then to have it fail again after a while.

I have reached the stage whereby I just gave up on using the N95 as a modem.

[grschinon]

---

23-Jul-2008 04:21 AM
palmy wrote:
I have reached the stage whereby I just gave up on using the N95 as a modem.

---

There has to be something wrong either with the installation of your drivers or with the O/S itself. I get a rock-solid connection over a USB cable - good speeds and no spurious disconnections. Then again, my laptop isn't plagued with Windows

[bwiehahn]

And what speed do you managed to connect at with your N95?

[grschinon]

I get bursts of up to 5 mbps roughly.

[bwiehahn]

You mentioned your PC is not infested with Windows. You see, us poor Windows users are facing a problem that when connecting with our Windows PC’s, using our Nokia’s connected via USB, to the Internet, a Windows taskbar popup states that we connect at a max speed of 921Kbps. All the settings found in Windows drivers only allows for max connection speed setting of up to 921Kbps. So this is where we are battling. Even to get both the network provider and Nokia to understand this is impossible, especially since the N95 and the 6120C are both HSDPA enabled. When you browse the Internet, there are many users out there with the exact same problem. Any suggestions?

[grschinon]

Yes. One suggestion. Don't believe what you see.

The so-called connection speed you see in Windows is a load of rubbish. It is meaningless. Your modem will connect at whatever speed it can regardless of what speed Windows wants to show you.

If it doesn't connect any faster than that it's because it can't anyway. It isn't being limited to the speed you see.

[bwiehahn]

Thanks a stack, that makes sense. However, somebody had sent me a speedtest URL I'll try and see what speeds I get. Hopefully that will put this issue to bed for me, once and for all.

[grschinon]

http://i.dslr.net/tinyspeedtest.html

Don't be fooled, it isn't just for the iPhone. It works for any AJAX-compatible browser.

[bwiehahn]

Thanks again, that's great, I'll give it a bash.

[sbak]

Dear Palmy,

Your problem could be the order you start the software/drivers and connect your N95.

I've had a similiar problem. Every time I connect the N95 before starting PC suite windows does into to ites "detected new hardware" and setup a brand new "GSM modem". It call the new modem something like "GSM modem #3". Unfortunately PC Suite was setup to use "GSM modem #2". And connot figure out that they are in fact the same thing, thus you have to go through the setup in "Connect tO Interinet" within "PC Suite" every time.

The work around is always start up in the following order.
1. Start PC/Laptop
2. Start PC Suite
3. Plug in your N95 and wait for connection to PC suite (you should see your SMS inbox on top)
4. Click on "Connect To Internet" within PC Suite (The first time you will need to go through "Setup".

Hope this helps