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Is there any way I can unlock the bootloader for my O2 Xperia Play so I can install Cyanogen Mod on it? Sony announced today that they will not be releasing ICS for the Xperia Play. Now I want to unlock it and put Cyanogen Mod 9 on it. How would I go about doing this?

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so do you just want help unlocking the bootloader or would you like help installing a custom ROM? –  jlehenbauer May 25 '12 at 20:54
    
unlocking the bootloader –  notrodash May 26 '12 at 12:42
    
For future readers, ICS never officially came to the Xperia Play :( –  Ben Jan 7 '13 at 16:11
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2 Answers 2

up vote 2 down vote accepted

Yes I have an O2 Xperia Play and the only way for you to get CM9 is to unlock the boot loader using Omnius or any test point method as I did. Do not use Sony's way as you will lose DRM protected content and that is not what you want, so use Omnius then try and get into fastboot mode and it will work.

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Yeah mine says allowed:no does Omnius work? Are there any free methods of unlocking? –  notrodash May 26 '12 at 12:44
    
I tried omnius and it just freezes at "Waiting for loader response" –  notrodash May 26 '12 at 14:02
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Unlocking Your Xperia Play

Known issues

It is currently not possible to unlock the boot loader for CDMA phones. Some customers with unlocked boot loaders have experienced problems when they are accepting over the air upgrades (FOTA - Firmware upgrade Over The Air). For customers that have unlocked the boot loader, please do not accept any over the air upgrades. For additional information, check out the hints and tips from the community on the XDA forum. Instructions

  1. First, you should confirm that it is possible to unlock the boot
    loader of your phone by checking the service menu.
  2. In your phone,
    open the dialler and enter ##7378423## to access the service
    menu. In your phone, tap Service info > Configuration > Rooting
    Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
  3. On your computer, click Continue at the
    bottom of this page to start the unlock boot loader process.
  4. Read
    through the information in the pop up window and click Yes, I’m sure, if you are still confident you want to unlock the boot loader.
  5. Read through and accept the legal terms. Click I Accept.
  6. Enter your name, email address, the first 14 digits (remove the last digit) of your phone’s IMEI number and the two CAPTCHA words in the input boxes. Click Submit. You can view the IMEI number by entering *#06# on your phone.
  7. The unlock boot loader key is displayed. Write it down and save it for later use.
  8. Download and install the latest Android SDK from developer.android.com.
  9. Download and unzip this file. This is the standard android_winusb.inf-file, with a few lines of code added to enable Fastboot to support Sony and Sony Ericsson devices. Make sure you are running Google USB Driver package revision 4 or higher in
    your Android SDK. You can see current Google USB Driver package
    revision in the SDK Manager.
  10. Place the unzipped file in the
    usb_driver folder, located in the Android SDK > extras > google
    folder on your computer. Accept to replace the old
    android_winusb.inf-file with the new file. If you can't find the
    usb_driver folder, please install the Google USB Driver Packager
    using the Android SDK manager.
  11. Turn off your phone.
  12. On your phone,
    push and hold the unlock button* at the same time as you connect the phone to the computer with a USB-cable. The unlock button may differ between different phone models. See the note in the bottom of this
    page for more information on what button use on your phone.
  13. On your computer, you will be asked for drivers. Point to the usb_driver
    folder where you placed the android_winusb.inf-file, and select the Android Boot loader Interface-file.
  14. Open a command window and go to the tools folder within the Android SDK folder.
  15. Enter fastboot.exe -i 0x0fce getvar version, and verify that you get a response back (for example "0.3"). This means your phone is connected properly.

  16. Warning! If you perform this step, you will unlock the boot loader. This may void your warranty and/or any warranty from your operator. If you still want to unlock the boot loader of your phone, enter fastboot.exe -i 0x0fce oem unlock 0xKEY, where KEY is the unlock boot loader key you got in the beginning of this instruction. The boot loader should now be successfully unlocked.

Hold the following button while connecting your phone to a computer with a USB-cable:

  • Menu button (for Xperia™ arc, Xperia™ arc S, Xperia™ neo, Xperia™ neo V, Xperia™ pro).
  • Search button (for Xperia™ PLAY).
  • Volume up button (for Xperia™ mini, Xperia™ mini pro, Xperia™ ray, Xperia™ active, Live with Walkman™, Xperia™ S).

This process was found on Sony's unlocking site.

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if you want help flashing ROM, we can take that step too. –  jlehenbauer May 25 '12 at 21:02
    
How do I check its GSM –  notrodash May 26 '12 at 12:43
    
Also I am unable to get into fastboot mode when booting my phone, it just skips it :O –  notrodash May 26 '12 at 12:44
    
If somebody wouldn't have edited the title you might have been able to see that i already checked and the bootloader unlock is not allowed. –  notrodash May 26 '12 at 12:45
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