Hi,
I already dismantled Roidmi , its easy but you need strong nails :)
from the up side the USP cover, i inserted my nail between the USB cover and Roidmi body then carefully pull it out from one side, then you need to go around to pull the other side clip.
The problem that my Roidmi not working i couldn't manage to know what is the problem.
If you need pictures just let me know.
Regards,