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 267

Sort by: Newest | Oldest | Most popular

  1. By Irfan Shaikh


    I have installed EMMA twice now and every time i get: “An application error has occurred and the application will exit. Unable to login”
    I uninstalled, redownload, copied the customization.ini file to the Emma folder and I get this every time.
    I am running Win7 32-bit and also tried on Windows 8, I also have an active internet connection.

    Any Help???

  2. By . .


    What a shame there’s still no services/support for Xperia J. My mobile is stuck (can’t login; no keyboard support due to Google search crashed message) and I tried everything: can’t hard reset (tried various button combinations at restart but nothing works), and Sony PC Companion can’t help either since the keyboard doesn’t work so I can’t login. I unlocked the phone. Why is it so hard to reset a phone? I can format a PC by replacing a hardrive :) Help?!?!

  3. By Marcel Reutter


    Iám using a Z3 Compact Device (D5803), i get everytime the message from the flash tool:”No availabe service matched the connected device”. The Device bootloader is unlocked and i update the Device twice times bevor without problems with the flash tool!So what can be my problem?

    • By Henri Bourcereau


      Same problem here with the z3 compact, I also succesfully updated the device before.

      • By Anna Aleryd



        I have sent your comments to our support team, who are looking into the reason behind this. So far, we haven’t found any issues on our side, but we’ll keep looking.

        Best regards,
        Anna from Developer World

  4. By Glen Barnes


    Windows 10 support coming?

  5. By utkarsh srivastav


    Hi,, when you will be rolling out update for flashtool so that it can be used for xperia L,???

  6. By Caio Sodre


    HI, I have a Xperia SP and I rally want know if my phone has some kind of supoort, because I need take it to the official software of sony

  7. By Italo Carislando


    Tenho um Sony xperia SP gostaria de saber si tem alguma forma de disponibilizar o suporte para ele?

  8. By chandrajeet kumar


    I am trying to flash my Xperia SL but getting error “”No Service matched the connected device. Please help

  9. By Gopi Naidu


    My mobile stucks at boot logo “xperia”, After commecting to Emma it says locked phome is connected , how to unlock bootloader with switched off phone , My mobile is “Sony xperia miro”

  10. By Isaías J.


    EMMA says ”No available services matched the connected device” for my E3 D2243, with unlocked bootloader.

  11. By Boakye Agyemang Isaac


    please when i save the file it says ” access denied so what should i do

  12. By Boakye Agyemang Isaac


    my phone model is xperia arc LT8i and when i switch it on it cannot boot and also this word appears on the screen” DOCOMO” with NTT on top what should i do

  13. 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

  14. 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 .

  15. 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

Show more comments

1-21 of 267 comments. Show all comments