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Hanley
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Thu, 27 Nov 2008

Easy Dell HSDPA SIM access - 12:15
So my Dell XPS M1330 came with a built in Dell 5520 WWAN HSDPA card. This shows up on the USB bus and appears to work in Linux using usbserial (with vendor= and product= arguments to modprobe) with ttyUSB0 appearing correctly in /dev.

Originally I had no intention to use it, and the laptop came with it specced for Vodafone usage. Recently however Telstra and Optus have both started offering prepaid wireless broadband. I was wondering how easy it would be to change the SIM to one of those networks. After all lsusb currently outputs

Bus 002 Device 019: ID 413c:8138 Dell Computer Corp. Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard EAP-SIM Port

The book that came with the laptop has good instructions on how to pull it apart and access various parts of the hardware. So I had a glance at the WWAN instructions and was easily able to open it up and look at the device. However when I did this I discovered that the SIM was not attached to the device at all.

At this point I googled more accurately for details about the location of the SIM in Dell laptops with HSDPA devices. It was at this point I discovered an article on the Register that said Dell's are not tied to Vodafone and quite plainly pointed out to me the location of the SIM is in the Battery bay.

And hey presto an easily accessed Vodafone SIM is indeed sitting right there, it should be no problem to put a Telstra or Optus SIM in on a prepaid plan. Telstra appears to have better coverage by far, their USB devices may or may not work with Linux, however I know from experience the Optus USB device does work with Linux. However I do not need either for this laptop, Optus offer a SIM only prepaid kit for AUD $30, Telstra do not mention offering it, however forums suggest you can walk into a Telstra shop and ask for a 3G prepaid kit and request that it be wireless broadband enabled for around AUD $30 also.

The other nice thing I would like to note from this experience is how good the book that came with the laptop from Dell is, that it has good detail about accessing most of the hardware in the laptop is very useful and means you are less likely to break things if you want to look inside.

[/comp/hardware] link

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