1. First, take out the wooden strips around the photo frame with a wrench.

2. Tick off the layering with a wrench.

3. After that, drag the checked batten down by hand.

4. Then use a wrench to loosen the fixing screw on the left side under the photo frame.

5. Loosen the right fixing screw with a wrench.

6. After that, you can open the frame by pulling down the bottom edge of the frame.