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All of a sudden no signal on iPhone 12 Pro Max

Animas
Level 1: Joiner
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IPhone 12 Pro Max and lived in same location for years, other family members with same phone are fine, I have changed sims too. I had two days of no signal. Then since changing sim I get no signal then 1 bar thrn fine for a while.been 4 days. Cant make or receive calls at times. Apple don’t know o2 are washing their hands. Just don’t know what else to do. Can someone please help
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MI5
Level 94: Supreme
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@Animas 

You need to try your sim in another phone.

If it works in that, the phone is faulty, but, if you have 5g turned on and you're not in a 5g area, it can upset the signal, so chek and turn off 5g in the data settings first.

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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MI5
Level 94: Supreme
  • 128347 Posts
  • 614 Topics
  • 22586 Solutions
Registered:

@Animas 

You need to try your sim in another phone.

If it works in that, the phone is faulty, but, if you have 5g turned on and you're not in a 5g area, it can upset the signal, so chek and turn off 5g in the data settings first.

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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