Watch out not to pry off the metal housing as it can cause damage to your oven.
There is a small place to insert your screwdriver in between both the metal housing surrounding the glass and the actual glass. Pry out to the left gently using a scooping motion.
Inside the glass you will see a chamber that your existing lightbulb sits that needs replacement. Take note of how it is inside the fixture.
Try not to touch the glass of the lightbulb as it will burn out faster.
Try placing your lightbulb in as is and if it does not fit, you may slightly bend the two bottom metal bolts towards the inside only. This will make the lightbulb fit better inside the structure.
This may take a bit of adjusting; the lightbulb should be placed flat inside the structure where the flat bottom is perpendicular to the side of the oven.
Place the glass back into the oven with the oval/rounded part of the glass is facing the bottom of the oven/stone.
Once you believe your lightbulb is in the socket and fits properly proceed to testing.
Test lightbulb by pressing the ON switch on the front of the oven. If it doesn’t turn on, it is not fitted properly. Please retry and ensure it is snug inside the sock
If you have power, you have changed the lightbulb successfully