Hum, the arm may take a wrong "zero" position in memory at startup, but it's not sure. This is a good question. If you make the test, give us a feedback please. Merry Christmas !
The upper arms (thin) must be pry off on both sides with metal spudgers. Then remove the white axis that connects them (what is called a spring here).
And then you need to manually rotate the lower arms to the upper position (while slightly pulling them) until the latches are aligned with the corresponding slots in the case and the arms separate from the body. No force required.
