Sony ERS-210 Operating Instructions Manual page 61

Symptom
After picking AIBO up, it
stops moving.
The mode indicator is
flashing and AIBO emits
musical tones, but it does
not walk.
The chest light flashes in
orange.
AIBO does not chase the
supplied ball.
AIBO does not walk.
Cause/Remedy
AIBO stops moving whenever it is picked up
from the floor.
c Check that the mode indicator is flashing,
place AIBO on the floor, and then keep
pressing on its head for several seconds.
AIBO stops moving whenever it is picked up
from the floor or an object is caught in one of
AIBO's leg joints.
c Check that the mode indicator is flashing,
place AIBO on the floor, and then keep
pressing on its head for several seconds.
There may be a problem with the battery pack.
c Replace it with a new one (page 37).
When running on an internal application, AIBO
does not chase the ball, but responds to it.
When you touch AIBO on the back, it walks for
about five seconds.
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