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 200

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  1. By Diwakar Jaiswal


    When services for Xperia M dual will be added in Emma

  2. By Mu'meen Ishak


    Hmmm… I still didn’t receive any verification email… why?

    • By Anna Aleryd


      You don’t need to register to use the flash tool, just make sure you have the Customization.ini file in the right place according to step 4 and 5 on the installation page.

      Anna from Developer World

  3. By Hq Kang


    why dould not send me a new password by email?

    • By Joe Padre


      Hi Hq,
      You don’t need a password to use the flash tool.
      Best regards,
      Joe from Developer World

  4. By Venkatesh Manoharan


    i am unable to login to emma flash tool downloaded thru sony website using venkat4uin. get any activation mail as well.pls help.

    • By Prince Kingsley Juschkat junior


      Hi Venkatesh
      Hope this helps, after installing the Emma Flash tool, copy the customization.ini file from the unzipped folder (its a notepad and contains “developerworld/enable = true” when opened)
      After that copied follow this steps, Computer >Local disk C > Program Files >Sony Mobile >Emma> “Paste the copied customization.ini file here” authorise the changes with “Yes” when requested. Now close the folder.

      Now start Emma by clicking Start > All programs > Sony Mobile > Emma > Emma. It should open without prompting log.

      • By Swarup Mandal


        help me out, the customisation thing isnt working out for me.

        • By Anna Aleryd


          Hi Swarup,

          Can you try to uninstall Emma and remove all related files, then re-install the tool from the beginning? Make sure to follow the steps on the installation page in detail. If it still doesn’t work out for you, please let me know and I’ll try to find out what goes wrong.

          Best regards,
          Anna from Developer World

      • By Anna Aleryd



        Thanks a lot for helping out!

        Anna from Developer World

  5. By Luis Torres


    Hi, is this service currently available for Xperia T (LT30) because when I connect and detect my device the program said “service not longer available”

    • By Ryan Newson


      Am having same problem, please fix sony :(

  6. By Hafiz Rana Umer


    hi,im user of sony xperia z1 i want to know if Bootloader unlock allowed says no thn how i unlock my phone

    • By Anna Aleryd



      If the “Boot loader unlock allowed” status says “No”, you can unfortunately not unlock your device.

      Best regards,
      Anna from Developer World

  7. By Peter Hyman


    Why is the Xperia ZL C6506 not recognized? “No Matching Services” Error. “No available services match the connected device”. Device is properly unlocked.

  8. By hayatu dalhatu


    my phone is xperia z pattern locked, when I start d flash tool, and connect my phone, it says locked phone detected, does this mean I cant use it to flash my phone?

    • By Peter Hyman


      Yes. You must unlock your bootloader first. Beware though, you will lose Bravia Engine and DRM keys. Consider first if you really want to do this. See XDA forums for instructions on saving TA partition prior to unlocking and other important information.

  9. By Shanmuga Raj


    Hello please provide flashtool for my xperia j:((

  10. By Peter Hyman


    Will Flash Tool work to re-install Sony ROM in these circumstances:
    1) Device has custom ROM installed; and/or
    2) Device has been rooted.

    Also, Does Flash Tool re-write boot partition?


    • By Peter Hyman


      Never mind. I got answer. I can use FlashTool (unofficial tool). I stored copy of my current firmware which I can reflash. Also stored TA partition to relock.

  11. By Anonymous


    Why need to approval for use this?
    if helped you guys?

    1 month im waiting mail confirmation for repair my xperia Z, i dont want to send my xperia z to SONY Customer Service, Nothing to deal with it, Sony customer service is poor of service, the knowledge the product & development of sony customer service not better than me.

    Now is HARDBRICKED my Heart

    • By Anna Aleryd



      You don’t need approval to use this flash tool. Just make sure you have the customization.ini file in the right folder, according to step 4 and 5 on the installation page. Good luck!

      Best regards,
      Anna from Developer World

      • By Anonymous


        Thank’s Anna, now i can use it :)
        I have downloaded fresh copy of flash tool & i found customization.ini, trying to wake up my Xperia Z, from a deep sleep right now :D. Wish can use normaly like new..

    • By Anna Aleryd



      Unfortunately, the flash tool does not support Xperia U. Check out the supported devices page for a complete list of supported phones!

      Best regards,
      Anna from Developer World

    • By Anna Aleryd


      You don’t need to register to use the flash tool, just make sure you have the Customization.ini file in the right place according to step 4 and 5 on the installation page.
      Anna from Developer World

  12. By Yahya Nael


    can’t recognize my wt19i ??!! any ideas

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