This is a software update for your phone from Orange. Click on the link to download, don't worry it is free and won't take long http://www.orange-update.com/2
So click the link and IE opens, then prompted by: -
Download file 'OrangeUpdate_C550p_signed.cab'?
I haven't said Yes or No yet because I don't want it to undo my unlock or decertification.
Anyone else had this and what did you do?