Now, it is planning new ways to encourage the holdouts to stop using the devices.
Samsung plans a software update in the next 60 days that will limit the battery charge of these phones to 60 percent of capacity and also warn users every time they charge, reboot or turn on their Note 7 device.
"We remain focused on collecting the outstanding Galaxy Note 7 phones in the market," Samsung said.
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Samsung has taken similar steps elsewhere, including in Europe, to encourage people to stop using the devices, which pose a risk of overheating and catching fire.
As it continues to deal with the Note 7 crisis, Samsung is also looking forward, aiming to figure out how to rebuild its reputation ahead of next year's flagship smartphone debut.