Verizon is expected to return its FiOS television equipment to consumers by the end of March, the company said Monday.
The company said in a statement that it was making a series of technical adjustments to the devices, which it said would help prevent a spike in consumer complaints.
Verizon said it has already restored about half of the 3.4 million televisions that were turned on and has more than 200,000 more in the process of being restored.
The FiOS device recall will affect customers in the Philadelphia and Atlanta markets.
Read more:Verizon said it would also issue a recall for the TV sets that were plugged into devices connected to the Internet.
The FiOS recall covers a range of devices, including television sets, desktop computers, laptops and other wireless devices.
Verizon is recalling the devices because they may be susceptible to a potentially dangerous fire or explosion caused by a sudden surge in voltage.