Sorry about that. 
We are aware of this issue. 
1. Did you buy the FT1 from the local seller? If yes, please contact the local seller for helping locally. 

2. If not, can your solve the problem by yourself if we send the screw for you? 
Here is the instruction video about installing the screw:
https://fiio-firmware.fiio.net/FT1/FT1%E8%9E%BA%E4%B8%9D%E5%AE%89%E8%A3%85%E8%A7%86%E9%A2%91%E6%96%B0.mp4


3. Which country are you located in?


Please inform us the related information first. Thanks in advance! 


We apologize for any inconvenience in the meantime!