Hi riders4sia,
Thanks for your reply.
I think the battery was fully charged when I started but I did charge it up again, as I have another sony phone.
As to the USB port there seemed to be some issue with both ports not working correctly and since I am now having problems with my main computer I will be trying to use my laptop today to try fixing the phone.
With SE toolslite there seemed to be an issue with Qmaker, ie my antivirus removed the qmaker exe from the folder , so turned off the antivirus, downloaded again but there seems to be a file missing ,.Quick access VKP file which I had when I unlocked my K550i, which by the way I had no problem unlocking using SEtools and Simlock patch remover.
I think I just need reassurance that this will be fixable eventually. Oh well I will keep on trying.
Thanks for your help.