New flash tool from Sony for unlocked Xperia™ smartphones [video + beta download]

Today, we release a beta version of our new flash tool for Xperia devices, which enables you to put on standard Sony software* on a Sony Xperia™ smartphone which has the boot loader unlocked. This functionality has often been requested by the open Android™ community, and now we’re glad to support it. Please note that the phone still stays unlocked, and that the warranty may still be voided. As this is a beta version, only a limited number of phone models are supported to begin with. Read on for instructions and more information, and to find out how provide us feedback – we are really eager to hear what you think!

At Sony, we have been supporting the custom ROM community for a long time, and our unlock boot loader service is very popular. We know that many of you are advanced users, who like to try out different ROMs on your Xperia™ smartphones. But until now, there has been no way to go from a custom ROM to Sony software.

We are proud to provide high quality, stable software for our phones, and with this new flash tool, you can now flash standard Sony software on a Sony Xperia™ smartphone which has the boot loader unlocked. However, please note that the boot loader of your phone still stays unlocked.

To start with, you can use this flash tool with Xperia™ S, Xperia™ arc and Xperia™ arc S, but we plan to add support for more models going forward. UPDATE: Support for Xperia™ T added. At the moment, one software version is available for each supported phone, but our ambition is to offer a selection of software versions released for each phone. For example, this could mean that you can choose between GB and ICS releases.

This flash tool is available for most markets globally**, with a few exceptions*** due to distribution restrictions.

How to install and use the flash tool for Xperia™
To get started, you download and install the flash tool on your Windows computer. When you use it, the tool connects to a server to access the software for your phone. To download the flash tool, go to the Xperia flash tool installation page. On that page, you will also find all instructions you need to install the tool.

Screenshot showing the flash tool when a phone is connected.

When you have installed the flash tool, it’s easy to flash software onto your unlocked Xperia™ smartphone. Once you have connected the phone to the computer, the tool automatically identifies the phone model and displays the available software. For more information on how to use the flash tool, go to using the flash tool for Xperia.

Note! When you flash software onto your phone with the flash tool, your user data and content will be erased. Make sure to properly back up all information.

Let us know what you think
So now you’re welcome to try the flash tool for yourself! Since it is a beta version, we are eager to find out what you think about it. Is this a useful service? And what phone models and software would you like to see support for in the future? Please share your opinion on the XDA forum, where we’ve started a thread for this flash tool. And as always, you can drop us a comment below to let us know what you think!

More information

What others say about this

* Only a limited number of phones and software versions will be available.

** The flash tool for Xperia™ devices is intended for the following countries: Afghanistan, Albania, Algeria, Andorra, Angola, Anguilla, Antigua & Barbuda, Argentina, Armenia, Aruba, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, British Virgin Islands, Brunei, Bulgaria, Burkina Faso, Burundi, Cameroon, Cambodia, Canada, Cape Verde, Cayman Islands, Central African Republic, Chad, Chile, Colombia, Comoros, Congo (Democratic Republic of the), Congo (Republic of the), Costa Rica, Cote d’Ivoire, Croatia, Curacao, Cyprus, Czech Republic, Denmark, Djibouti, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia, Fiji, Finland, France (including Guadeloupe), French Guiana, Gabon, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kosovo, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Macau, Macedonia, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Martinique, Mauritania, Mauritius, Mexico, Moldova, Mongolia, Monaco, Montenegro, Morocco, Mozambique, Namibia, Nepal, Netherland Antilles, Netherlands (including Bonaire), New Zealand, Nicaragua, Niger, Nigeria, Norway, Oman, Pakistan, Palestine, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Reunion, Romania, Russia, Rwanda, Samoa, San Marino, Saudi Arabia, Senegal, Serbia, Sierra Leone, Singapore, Slovakia, Slovenia, Somalia, South Africa, South Korea, South Sudan, Spain, Sri Lanka, St. Kitts & Nevis, St. Lucia, St. Vincent & the Grenadines, Suriname, Swaziland, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad Tobago, Tunisia, Turkey, Turkmenistan, Turks & Caicos, UAE, Uganda, Ukraine, United Kingdom, United States, Uruguay, Uzbekistan, Vanuatu, Vatican City, Venezuela, Vietnam, Western Sahara, Yemen, Zambia, Zimbabwe.

*** China, North Korea, Iran, Burma, Cuba, Sudan and Syria.

Comments 250

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  1. By Afzaal Masod


    (bootloader) Unlock phone requested
    FAILED (remote: Phone is already unlocked!)
    finished. total time: 0.010s

    but emma saying that your device is locked. i have arcs lt18i

  2. By Israel Nyanyo


    hello I did download the software but I was asked to create a new user and and I verification will be sent to my mail for me to confirm but the feed back never came …… kindly assist me .

  3. By Weiyu Yang


    It detects my xperia z3 but theres no option to flash it…. what can i do?

    • By Anna Aleryd



      Have you checked that the model number of your device corresponds with the model number listed on the supported devices page? In the case of Xperia Z3, it is D6603 that is supported. You can find the model number in Settings > About phone.

      Best regards,
      Anna from Developer World

  4. By magdy youssef


    كيفية استرجاع نظام الاندرويد القديم Xperia c3

  5. By Siripurapu Kishore


    i have downloaded Emma and am now waiting for my user to be “approved”.no approved email has come to my email…can u help me

  6. By KL Peake


    I purchased a Chinese version of the Xperia Z Ultra because it was not available in the US at the time I purchase it. I would like to know if I can flash this phone with an American version of the Sony ROM for this same phone?

  7. By Danyal Ahmed Chaudhry


    runnig in windows 8.1,
    Device: Xperia Z3 6653,

    Device is detected, but shows ” No available services matched the connected device”..

    Please help

  8. By Bradley Metcalfe


    i am trying to use t with a sony m2 and it keeps saying failed to search fr sercices on the sever. what should i do

  9. By sonny andryan


    I can’t find my xperia e4 dual on your site for unlock bootloader, pls help me

  10. By Javad SH


    For My Xperia P is giving Error as ” No available services matched the connected device”..
    Pls Advice

  11. By Toby Ash


    Hi There

    Is the android Lollipop update going to be available soon through this flash tool?


    • By Toby Ash


      for the Xperia Z1

  12. By Ilan Bloom


    Hi, I have downloaded Emma and I’m now waiting for my user to be “approved”. How long does this normally take? I’m a private user and only want to play with my personal mobile.

  13. By john clayton


    Sony xperia t. Recognised phone and just responds
    Failed to get service list: User has already been denied access to server. User has already been denied access to server. Not sure what to do now? Anyone ?

  14. By Rajesh Ranjan


    For My Xperia Miro Emma is giving Error as ” No available services matched the connected device”..
    Pls Advice.

    • By Anna Aleryd



      Thank you for your question. The flash tool for Xperia devices supports selected devices, and unfortunately Xperia miro is not supported. Check out the full list of supported devices for more information.

      Best regards,
      Anna from Developer World

  15. By Diamant Asllani


    Can you please tell me when do you plan to release the GB and ICS software in the flashtool fro Xperai arc S

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