In order to replace Filo's battery, please follow these steps:
- Lay Filo on a flat and stable surface, with the "LO" facing upwards
- Locate the angle with the silicone ring
- While holding down the device, carefully pry open the device from that corner
- Take out the chip and pull out the battery
- Place the new battery with the "+" side facing upwards into the chip ("+" face must connect to the metal tab)
- Close the device.