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Hi guys i've been trying for quite a while to unlock the bootloader of the phone i've bought. It's from hong kong and branded to vodafone it's not sim locked as I tried an optus sim and it worked.

I press and hold the search button and plug the usb in and I get a blue light but when I try to check if fastboot can find it, it can't.

Any ideas what the problem is?

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migrated from stackoverflow.com Aug 29 '11 at 13:25

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If fastboot from your computer can't find it, try following these steps exactly, beginning with installing the Requirements below. The most likely problem is some sort of driver missing, disallowing the computer from reading the phone in while it's in the bootloader.

This guide can be found on addictivetips.com, and uses a fastboot program from your computer to unlock the bootloader:

Requirements:

Steps:

  1. To begin, navigate to this website: http://unlockbootloader.sonyericsson.com/instructions.
  2. Click Continue at the bottom of the page and enter your device’s IMEI code, name and email address in the relevant fields.
  3. Your unique unlock key will now be mailed to you.
  4. Now unzip fastboot.rar and open the folder extracted.
  5. Within that folder, hold the Shift key and press the right Mouse button. Now select Open command window here.
  6. Now we need to connect the phone to the pc in fastboot mode. Do so by turning the phone off, holding the menu button (search button for the Xperia Play) and plugging in the USB Cable.
  7. Now in the command prompt, enter the following command:

fastboot.exe -i 0x0fce getvar version

  1. Now enter the command, replacing KEY in the string with the unlock key mailed to you:

fastboot.exe -i 0x0fce oem unlock 0xKEY

That is it! The bootloader is now unlocked.

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I fixed it :) I just had to update the original firmware. Then do those steps. That seemed to fix it. –  Josip Gòdly Zirdum Aug 30 '11 at 13:24
    
cool! glad you found out how to fix it :) –  jlehenbauer Aug 30 '11 at 14:15
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