A. On the forum(https://forum.fiio.com/) homepage, click on "Sign up now" from the top right corner. 

B. Switch to English page if you enter the Chinese page:

C. Click 'register now' icon:

D. Tick the square in front of 'Read FiiO User Registeration agreement and privacy policy'  then click 'the next step':

E. Follow the tips to finish the registeration:

F. The page will return to log in page automatically after finishing registeration.