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New phone without signal

Anonymous
Not applicable
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!)
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MI5
Level 94: Supreme
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You may need to do a sim swap if it is an upgrade ?
http://swapmysim.o2.co.uk/
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:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)

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MI5
Level 94: Supreme
  • 144711 Posts
  • 634 Topics
  • 27733 Solutions
Registered:
You may need to do a sim swap if it is an upgrade ?
http://swapmysim.o2.co.uk/
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:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)
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jonsie
Level 94: Supreme
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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.

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