I've checked the cable, and not had any issues with the computer for flashing.
I've tried two different XSA official firmwares - including redownloading them again.
The MD5 checksum checks out OK
Is there some way the phone might be locked so I can't change to an XSA firmware? Does anyone have any ideas how to bypass this WITHOUT breaking the warranty counters etc?
I'm currently left with a non-working phone, I'm downloading the XSI firmware again to see if that might atleast get me back to a working model.
I've not encountered this issue before flashing images for my other phones i9100 or i9505 previously.
Thanks for any help