Make sure the power supply is fastened to the back plate and that the back plate is locked in place with the upper back plate. If it feels loose remove it and reinsert pushing from the back like so:

Make sure the tooth lock is flush.

Guide the power cable through the smaller hole leaving the Micro USB connector to the upper section.

Connect the power cable to the 2 upper screws. Pay attention to the polarity or you will fry your HestiaPi!

Positive (RED) goes to the top screw. Negative (BLACK) goes to the second screw like shown below.

Connect the Micro USB cable to Raspberry Pi board as shown.

WARNING 1: You are dealing with mains (high voltage electricity) so make sure you take any necessary precaution!

Now its time to fix it to the wall. Use the screw and plaster supplied. Use the 2 mains cables from the wall to power your HestiaPi. Attach LINE (L) and NEUTRAL (N) to the bottom 2 screws of the power supply. L (brown) goes to the bottom. N (blue) goes to the second contact from the bottom. Please keep in mind that home electricians may not respect the colour coding some times and have these colours swaped or even replaced by other colours so you may have to check yourself with a simple tester screwdriver.

WARNING 2: You are dealing with mains (high voltage electricity) so make sure you take any necessary precaution!

WARNING 3: You have been warned! 🙂