how to update wp 8.1 preview to cyan

[ashokpharmaco]

Dear friends.
currently i am using lumia 720 with 8.1 preview.i tried to update cyan, which is released recently.but my mobile still in preview stage its not updating to cyan. in preview my mobile battery is draining very fast and mobile getting heat while using on mobile internet. can anybody please tell me the solution.
Thank you:unhappysweat:

 

[Rogozinski]

Download Nokia recovery software. The program will downgrade your Phone to "black"/WP 8. Then check updates on your Phone and Cyan will be there. Did this on my mothers 920 and it works! Good luck