hi for a few days my network has cut out.
i get celluar network not avaible.
it was fine before, giffgaff service update say's it ok. on site.
coverage saying its fine.
and force change don't bring signal up.
earlier it cut in by it's self then cut out real quick.
so no service for me
When you say "force change don't bring signal up", do you mean that the manual roam doesn't show any mobile networks (O2, EE, Vodafone, Three etc.) at all? If so, it's likely that your phone has become faulty. Take it to a local mobile phone shop and ask them to have a look.