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Support Xperia Z device won't boot

Discussion in 'Android Help' started by Mutak94, Jul 26, 2016.

  1. Mutak94

    Mutak94 Lurker
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    Sep 28, 2011
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    Hello,
    I'm having a problem with my Sony Xperia Z. It recently overheated and automatically turned off.
    When I try to turn it on I get past the loading screen and then a message "Optimizing application 1 of 243" appears, but the phone turns off again before anything is optimized. I tried turning the phone on while also pressing the volume down button, but then the loading just gets to "Optimizing application 20" (20-ish) and then just crashes again.
    What can I do to fix this?
     

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  2. Slug

    Slug Check six!
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    Aug 1, 2009
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    Install Xperia Companion on a PC/Mac, connect the phone via USB and try using the Software Repair option.
     

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