Some of the new Samsung, nearly US $ 2000 (NZ $ 2974) folding phones seem to be broken in just a few days.
The reporters who received the phones to see the public said Galaxy Fold's screen began to tremble and turn into black before completely disappearing.
Two reporters said they removed a thin, protective layer of screens that they thought were about to fall, but they should have stayed.
But reporters from The Verge and CNBC said they had left that layer and their screens were still broken. CNBC video shows the left side of the internal screen with intermittent flashing, and the right side does not respond.
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The phone was "completely unusable" after two days, CNBC journalist Todd Hasselton wrote.
The long-awaited fold-down phone is about the size of the default smartphone when it is folded, but it can open up to the size of a small tablet. The phone is designed to operate whether it is closed or open; when it's open, the single-screen display is busy with an obstacle.
Samsung promises that the display can withstand open and close 200,000 times, or 100 times a day for a period of five years.
Galaxy Fold is one of the most expensive phones anywhere – especially if it's not as durable as I promised.
Samsung did not comment on it immediately.
The company had a catastrophic launch of the new phone in 2016 with the Galaxy Note 7, which Samsun eventually revoked because his batteries were set on fire.