Samsung has told Galaxy Note 7 users to turn off their devices and return them as soon as possible, as it continues to wrestle with a battery fault that causes the phones to overheat and explode.
Samsung's edict includes replacement handsets issued as part of its global exchange programme, in a further sign that it is struggling to get a grip on the problem.
In a statement issued overnight, Samsung said: “Because consumers’ safety remains our top priority, Samsung will ask all carrier and retail partners globally to stop sales and exchanges of the Galaxy Note 7.
“Consumers with either an original Galaxy Note 7 or replacement Galaxy Note 7 device should power down and stop using the device and take advantage of the remedies available.”
These remedies include swapping the Galaxy Note 7 for one of Samsung’s Galaxy S7 handsets or getting a full refund.
The move comes just hours after Samsung was reported to have stopped production of the handset, which was first recalled at the start of September.
Samsung said at the time that it had changed battery supplier in order to rectify the fault, but this has not fixed what has fast become 2016’s biggest tech story.
Samsung initially suggested it would relaunch the Galaxy Note 7 this month, but replacement models have been at the centre of a string of incidents in the past week.
An aircraft in the US had to be evacuated following the explosion of one handset, while others have said their new phone blew up while sitting idle on heir bedside table.
Networks across the globe had already begun to pull the Galaxy Note 7 from their shelves before Samsung’s latest statement.
It's likely that the Korean tech company’s bottom line and its wider brand will be severely affected by recent events.