Price competition and a poor reception for its latest mobile phones have hit Motorola sales and pushed it into the red for the past three months.
The firm's chief financial officer left last month
It made a $181m (£90.2m) loss between January and March, compared to a $686m profit in the same period last year. Sales fell from $9.6bn to $9.4bn.
Motorola warned investors last month that it would make a quarterly loss and reduced its yearly profit forecasts.
It has been under pressure after a succession of disappointing results.