Sony Ericsson has announced that it has issued fixes for users of its new Satio and Aino smartphones, reported to have been suffering from issues.

"Sony Ericsson UK and Ireland is pleased to confirm that new software is now available for both Satio and Aino via", says the phone co in a statement.

"This will allow consumers who have already purchased the devices to easily update their handset and benefit from improved handset speeds and battery usage. We can confirm this updated software has been approved by UK operators and fixes previous software issues".

With the delivery of the new software, retailer Phones 4U is now selling the Satio again in its stores and online, but there's no mention of Carphone Warehouse doing the same just yet.