Whenever You Download a Third-party Theme and going to Apply On your device. then You will see an Error message appear on Screen “Themes From Third-party source are not supported error: downloadjauth rejected 402“. So Today I’ll help you to fix this issue and Guide you to install any third party MIUI themes on your Device. this method works on any Xiaomi Device.

How to install Third Party Miui Themes

This The Official Guide of How to Download a Theme from MIUIThemes.online Site and install it on Your Device Successfully Without any Issue.

First of all, You need to download a Theme from MiuiThemes.online Website.

(1) install an Application called ‘Themes Editor For MIUI‘.

(2) Now Click on ‘PICK A THEME‘ if You already installed, or Click on ‘BROWSER‘ Button

(3) Select the Download theme from SD Card and Click on OK Button.

(4) Click on Start Button.

How to install Third Party Themes one
Tutorial Screenshot One

(5) Click on NEXT Button.

(6) Click on FINISH Button.

(7) Click on the INSTALL button and Wait for a second

(8) Now Click on OK and Exit From the App.

How to install Third Party Themes two
Tutorial Screenshot Two

(9) Goto the Default Theme Store App from Your Device. and Click on the Profile button from the below Right Corner.

(10) From Next window Click on Themes.

(11) Here you will see your theme installed, but you need to select the first one [apply me]

(12) Now Click on Apply and Enjoy The Theme!

How to install Third Party Themes three
Tutorial Screenshot Three

Also – Download the TOMB RIDER Miui Theme

Last Word

In the end, I hope the problem is fixed and you will able to install any third party MIUI themes on your device. So Don’t Forget To Give A Thanks in the Comment Box Below.