Well i believe that sony made un update for more than one model. I think this update is for Z series too. Well perhaps this is the cause of all the problems F series is not Z series and the Z series is nor F series. I already made use of the reset button and all issues are retained. This operation doesn't solve the problem. I belive that Sony must do, in future, updates that can be rolled back if anything goes wrong with the update. I already said in this forum that i will never do un update without roll back fuction. Today TNT will pickup my Walkman to return it to Sony in Holland for a change. I am in the thirty days of satisfation and i decided that i want another Walkman (Same model) withot the update.I encourage everyody in the same situatin as i or in guarantee timei to do the same, Sony must learn with their mistakes. In the next few weeks i believe that sony will make another update in good conditions but time is money and i don't want to wait.
I'm wondering why did Sony abandon the Atrac format in Europe and America's as they mantain it in Asia. They never give support to Flac maybe another situation to contribut to the problems with the update. I hope that Sony can continue to be leader in walman's i really like the quality of their sound.
Bye all of you and thanks for you support