Issue with LG P970 upgrade - frozen

  hypermuse 18:25 05 Jan 2014
Locked

I have not plugged it into a computer for a while but wanted to transfer some . The software needed upgrading and it started fine but stopped due to an 'unknown error'. My phone has since been frozen on 'S/W Upgrade Please wait while upgrading'.

I have removed the battery several times but the message still appears when I turn it back on.

I have tried to do an 'upgrade recovery' as has been suggested in other forums however this does not work as the issue seems to be stopping the recognising the phone.

Has anyone any idea how I can fix the issue?

Thanks

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