Mobile phone WIN10 Preview version of the downgrade WP8.1 graphics and text tutorial

Mobile phone system from the advanced version of the downgrade to the low-level system, many friends will certainly think of restoring factory settings, but demoted to WP8.1 does not use the method to restore factory settings, because eventually will revert to the phone preview version. The only way to downgrade is through Microsoft's official release of the dedicated tool windows Phone Recovery Tool 2.1.

1, download and install Windows Phone Recovery Tool 2.1.1 and open, the mobile phone connected to the computer, the software will automatically detect the phone model.

2, after the retrieval of the server, you will find the model available firmware. The software prompts the server for a version that is older than your existing version, and "Installs the software" directly.

　　It's important to note that this process clears everything out of your phone, so you need to back up everything on your phone. The software also tells you how to back up. Click "Continue" to go to the next step.

3, into the download process.

4, then there is nothing you want to operate the content of the mobile phone will be restarted to install, and then restart after the recovery to WP8.1, the need to restart settings. Here is the need to say that there may be a failure to install, but do not lose heart, try again will generally be successful.

Finally, how to remove the downloaded firmware, has been installed there is no need to continue to put in the computer to occupy the place. There are three points at the bottom right of the software, and you can click on it to see the settings.

On the left side of the setup, switch to the bottom option app data, and then click the Erase application to remove the downloaded firmware package.

OK, about how to put the Win10 phone preview version of the downgrade back to WP8.1 's method is introduced here, I hope to help you.