Samsung has started again to roll out an update to its Galaxy S3 smartphone, weeks after a botched attempt angered users.
Some S3 owners were left with devices that drained battery quickly, would suddenly freeze, or were "bricked" altogether.
The update was to give users version 4.3 of the Android operating system - also known as Jelly Bean.
"We are sorry for the inconvenience this has caused," the company said.
A statement explained: "The fix for the issues with Galaxy S3 Jelly Bean 4.3 upgrade has begun rolling out to selected users in the UK, and will continue to do so.
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