Motorola is to cut another 4000 jobs globally, bringing the total axed or "outsourced" to 30,000 by the end of the year.
The firm reported better than expected results for the three months to the end of June, but still made a loss.
However, it said it expected sales to pick up by five per cent in the next three months and to return to profit in the following three months.
Bob Growney, chief executive at Motorola, said the cuts would save around £1.3bn ($1.8bn) a year.
Motorola recently shut down its Bathgate plant in Scotland with the loss of around 3000 jobs.
Separately, police said today [Friday] they had made no further progress in their investigation of the theft of 10,000 Motorola phones from the plant.
Two men have been charged but to date none of the stolen phones have been recovered.
Anyone with any information should contact Bathgate CID on 01506 653929.
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