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New phone without signal

[ Edited ]
I recently a received an iPhone 5s and a new nano sim from O2 but I have no signal, any idea what I need to do (have tried switching off and on!)
Posts: 115,850
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Registered: ‎04-04-2012

Re: New phone without signal

You may need to do a sim swap if it is an upgrade ?
If not contact CS for account activation http://www.o2.co.uk/contactus
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
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Topics: 580
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Registered: ‎04-01-2009

Re: New phone without signal

Sounds like youi need to do the sim swap. Once done your old sim will lose signal. At that point reboot your iphone at regular intervals until you get a signal.