Brain Test All-Star Level 254 Find a way to open the door

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By Emir Lajev /
Question
Find a way to open the door.
Hints
Hint 1:
You must get rid of the technician first.
Step 1
Answer
Tap on the mouse hole. Now, look at the hint paper and tap on these light switches: the left and the right ones on top row, the middle one in down row.