Thanks for the reply - sorry I missed this, thought I'd get an email.

I suppose it could be hardware but it does seem a coincidence that it was working right upto an attempted update which took it into a recovery loop. So the recovery loop and hardware failure would have had to occur simultaneously.

The log file is available at http://filebin.ca/emnhkh/iPhoneUpdater6.log

No 3.1.3 SHSH

Most grateful for any suggestions.