Big thanks to itsnotabigtruck!,

I managed to get my N9 stuck in 'boot loop'.
After a lot of trawling, I came across this guide. Well written, easy to understand and best of all, my phone is now working again!

My previous phone was a Nokia N8, I found the process with Phoenix was complicated and not always reliable.
Flasher.exe - Simple!

Thanks again, for your time and effort compiling this guide!

Regards

Markkyboy