The update, available via www.sonyericsson.com/update, allows consumers who have already purchased the devices to easily update their handset and benefit from improved handset speeds and battery usage.
In a statement, Sony Ericsson said: “We can confirm this updated software has been approved by UK operators and fixes previous software issues. With the delivery of the new software Sony Ericsson UK & Ireland is also pleased to announce that Phones 4u are reselling the product in their stores and online.”
Scott Hooton, Phones 4u trading director, added: "Phones 4u is pleased to confirm that all Sony Ericsson Satio stock has been flashed with new software and recommenced trading on Saturday 4 December.
“Sales of the Satio were strong over the weekend and we're confident that the device will continue to perform strongly throughout the Christmas trading period," continued Hooton.