Make sure you can access the reset and boot buttons at the back of the Pipo board (if in a casing, you have to remove it)
Connect Pipo to your computer with a USB cable (make sure it is not a charge-only cable)
Make sure to switch the Pipo on
Put the Pipo into upload mode:
Maintain pushed the "boot" button (the small yellow button labeled "BO" on the board rev1.0)
Click the reset button once
Release the boot button
Select a version below
Click Upload
When prompted to select a serial port, select "USB JTAG" (If not present, double check or replace your usb cable and repeat the steps to put Pipo in upload mode and try again. There is no driver needed for Pipo)
You should then be prompted to choose to install Pipo. Continue with installation.
After the installation is done, reset your Pipo (either by clicking reset button or switch it off then on)