Samsung on Monday said it is delaying the launch of its folding smartphone after trouble with handsets sent to reviewers.
Some reviewers who got their hands on the Galaxy Fold early reported problems with screens breaking.
Samsung said it decided to put off this week's planned release of the Fold after some reviews "showed us how the device needs further improvements."
"We will also enhance the guidance on care and use of the display including the protective layer."
And Dieter Bohn of The Verge said: "Something happened to my Galaxy Fold screen and caused a bulge... It's broken."