How to rollback to WP 8.1 from Windows 10 technical preview?
Issue:Want to rollback to Windows Phone 8.1 from Windows 10 technical preview.
Solution:Download Lumia Software Recovery Tool and try to downgrade your system in latest official update the data should be charged is near about 1.5 GB.
Visit this page and then click on the Download and install Windows Phone Recovery Tool. I hope that you will get the solution for this question.
Any Other Way?If the software Windows Phone 8.1 option is not there and shows to reinstall windows 10 technical preview then,
Try to download the software from this site the application name is Windows Recovery Tool specially made for Recover windows 8.1 if the system is upgraded as windows 10