Question about Sony Ericsson Z550i Cellular Phone

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Usb cable driver sony ericsson z550i windows xp

When i plug in my phone with the usb cable it comes up unrecognized device and i can not find working drivers for my phone please help it used to work very well andnow it wont at all

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  • Oscareddy Mar 27, 2008

    i'm not sure what you said there sorry but nothing wors for it not even add new hardware. i have been through every help file and faq i can find. downloaded about 5 or 6 different drivers all the same nothing works just comes up as an unrecognized device

  • jana_frrr Apr 16, 2008

    i have Z550i, when i connect my mobile to the comp through USB , its displaying it USB not recognised...
    I even checked in registry entries.. its fine...
    so wen i connect the cable b/w mob and Pc.... actually it gives the option such as (file transfer mode and phone mode). ill usually select the phone mode,
    but it giving as "phone is ready to be used with computer"
    and its not charging... thnx in advance.. help me out...

  • Anonymous May 09, 2008

    I have the original driver CD and also tried with downloaded drivers but still I get a message that "no mobile phone is connected" or "unknown device".

  • Anonymous Oct 15, 2008

    wen i connect my usb to the computer it says usb not recognised n wen i try to enable it it sayd no drivers installed!!!! pls help!

  • way2rachita Dec 08, 2008

    phone not working as a` modem

  • knysliuxdata Dec 15, 2008

    Tried latest SE PC Suite (4.0) but still no luck. Vista simply installs Unknown device drivers. When forcing provided Z550 drivers, it says either drivers cannot start (code 10) or drivers probably were written to other version of windows.



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Dear Oscareddy

Please find the signed usb drivers here (for Z550)


Posted on Mar 28, 2008


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I have sony erricsson z550i phone .it does not support sreaming audio or video,.how can i listen audio songs via net in my mobile.what i am doing for this.any flash plyer download please inform that.

Posted on Sep 04, 2010


Pin 12 should be connected with pin 1 in Z550i connector for charging. (12pin 5V, 9pin GND)

more info:

Posted on Aug 29, 2008

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Posted on Jan 02, 2017

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kindly rate my response..

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