How to fix “Themes from third party sources not supported” issue on MIUI?

“Themes from third party sources not supported” message appears on Android devices screens for Xiaomi users who try to download a theme to their phones or tables not from company official market but other internet resources. Since January 1st Xiaomi have banned all themes and other MIUI firmware components downloaded from internet resources different from their official market site. They did it to support designers intellectual property rights, to secure favorable conditions for development engineers and further their interface development. All download can be done successfully from designer.xiaomi.com site only. As to the users they can download their favorable stuff only from Xiaomi official market site.

It is not important which site (free or not) one uses to download his favorable theme. In any case he will get the message “Themes from third party sources not supported“. This ban can be avoided by employing two methods we present below. Note that both methods are completely legal.

They are :

  1. Register yourself as a beta tester;
  2. Register yourself as a designer.

Today we will teach you how to remove the restrictions safely. You can choose any of the presented ways. Both work.

Register yourself as a beta tester

  1. Create your Mi account via email (it’s free);
  2. Install color avatar on your Mi account;
  3. Send a report of any problem emerged when using MIUI to “Screenshot problems ” department;

  4. Wait till Xiaomi remove their restriction (about 2-3 days) and become a beta tester.

Official registration as a beta tester unbans downloads from third-party resources. Therefore the message “Themes from third party sources not supported” will not to be seen any longer.

Register yourself as a designer

  1. Create your Mi account either via email (the same way as in Method 1) or by using your phone number;
  2. Navigate http://designer.xiaomi.com/ and tap Login Now (right button);

  3. Input identifying information (phone number or email which was used for account creating), input your account password and then enter the site as a authorized user;
    How to fix "Themes from third party sources not supported" issue on MIUI?

  4. When you see a pop-up window , choose the upper line- “Individual designer” and tap;

  5. Input your dаta:

    a) Nickname – Designer name;
    b) Your Real Name;
    c) Your Mobile Number;
    d) Your Post Address;
    e) Tap the green button that submits your data and registers you as a designer;

  6. Wait until your data are verified that Xiaomi notify you through email, (approximately 2-3 days).

After receiving a notification in your email from Xiaomi that your are now officially is an application designer, you can download any themes from Android device memory without restrictions.

Using third-party themes with MIUI Theme Editor

In that case if you do not want to spend time registering and approving a designer account there is a third way that allows you to bypass the “Themes from third party sources not supported” issue. This method consists in installing the MIUI Theme Editor application. MIUI Theme Editor is the official editor of themes from Xiaomi, designed to create users own themes. To apply a third-party theme, you should follow the steps:

  1. Download the MIUI Theme Editor application from Google Play;

  2. Choose the theme you want;

  3. By clicking on the “Start” button, we begin the process of updating the theme;

  4. After completing this process, apply the added theme.
About Gavin

Editor @ android-fix.com. Gavin is a mechanical engineer by trade, but he's also a tech enthusiast. He spends his time working on Android-Fix and enjoys blogging about the latest trends in the mobile industry. His hobbies include cooking, traveling, and playing soccer with friends.

22 thoughts on “How to fix “Themes from third party sources not supported” issue on MIUI?”

  1. hi.. i got email from xiaomi saying that i am now designer, but still not able to apply any theme. Still saying third party themes not applicable.

    Reply
    • Hiii himamshu.. my name is vivek soni . I also want to use third party themes. I think we can help each other. As u r a designer now. I have a way to use those all themes. But it can\’t be done without being a designer of miui.so i need ur help.

      Reply
  2. i got email from xiaomi saying that i am now designer, but still not able to apply any themes or fonts. Still saying third party themes not applicable.

    Reply
  3. I\’m not able to register myself on designer miui. The 404 error occurred every time I try to register myself on designer miui.
    And I don\’t understand your step to how to register myself on miui beta tester.

    Reply
  4. m not able to register myself on designer miui. The 404 error occurred every time I try to register.
    Also I can\’t understand your step to follow how to register myself on miui beta tester….it\’s really complicated because whenever I follow your guiding steps it bring blank page.. I would want to be theme designer for sure so am waiting an assistant . ….

    Reply
  5. Tired of this, kind of frustrating can\’t register as a designer, site is not going kept getting error 404 on the page each time I click ( Accept Agreement and Register ) icon

    Reply
  6. hi.. i got email from xiaomi saying that i am now designer, but still not able to apply any theme. Still saying third party themes not applicable

    Reply
    • it is work, BUT only for a few hours/minutes… then it return to default theme.
      IDK if get a pro ver. would help but I don't think it would do the job

      Reply
  7. The update 7.11.2 closes the ability to install themes from third-party sources without Root. At the moment there are no ways to fix this issue.

    Reply
  8. Hello, i have the same problem, error 402 when using .mtz theme from memory card.
    The theme is the only one i want and it\’s not available in the store.
    Can be a tweak by Xposed, method with root, whatever 🙂
    I was using MIUI 8 Tweaks but it stopped working in MIuI 9 🙁

    Reply
  9. I got a email from xiaomi as i m a designer now but still can\’t select theme as themes are rejected as non original theme. Plz help me…..

    Reply
  10. Help Please, I\’ve gone through this process, I\’ve been granted permission, it take me to a web page and gives options of uploading and editing etc. When I click on theme editor at the top of the page, it comes up with:

    404 Not Found /editor/home was not found on this server.


    Help please I\’m trying to install 3rd party themes.

    Reply

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