Old iphone 4 sim still working

[Anonymous]

I've spent this afternoon setting up my new iphone 5s, even installed the nano sim, and all working fine. However, I see my old iphone 4 has just stated 'no service' but has wifi. I think my next task is to reset it to factory settings, as I intend to sell it. Is that all I need to do please? I assume that the 'no service' message means that that sim is no longer functioning. Thanks in advance. Ann

[Anonymous]

Just go into settings and hit erase content and settings.

That will wipe it back to factory conditions.

[Anonymous · Accepted solution]

Settings , general , reset , reset all content and settings.

Your old sim is now de activated which is why it's saying No Service.

[Anonymous]

Thank you both for the help. All done now. Now to find the best deal to sell it! New phone fantastic. 

[MI5]

Wifi will continue to work until you delete the wifi connection.

[Anonymous]

You're welcome.

High street stores such as Cex buy phones but not really at brilliant prices !

Gumtree or perhaps a friend or colleague.

I'll be investing in a iPhone 5s soon.

Enjoy yours.