WiPy correct power off sequence to avoid fs corruption

[sriboli]

Hello,

In my application WiPy is used as a wifi modem, and is continuosly
powered on and off (the power supply is removed from the device).
My question is:
Is there a correct way to power off (by removing the power supply) safely?
There is any procedure to avoid any damge/corruption to the internal file system or
other possible malfunction? (maybe a unmount procedure for the internal
file system, before removing the power supply).

Thankyou.

Regards.