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sim card not working in new phones

i've had this sim card for years and have had 2 new phones but the sim card does not work in them. despite being unlocked it says sim 1 not allowed on them both. i've heard that sim cards that are very old may not work in newer phones so wondering if...

Resolved! Lost Uk sim.card in Kiev - how can I replace?

Lost UK sim card in Kiev - how can I replace it?

Resolved! Switch up

Hi. I'm looking at switching my flip 4 to flip 6. Online when completing the checks it asks about screen damage and states: NOTE: Signs of screen burn include screen discoloration and missing pixels. The issues will not prevent you from being able to...

New Phone

Hi, I updated my contact the other day and also put the phone in my own name as it was in my dads before but i can no longer access my O2 as it keeps linking to another number which I do not know. MY number is ********** are you able to assist [Mod e...

no service

My phones just gone to no service I’ve tried turning it off and putting SIM card back in many times but still stuck on no service

Resolved! Spend

Hi will putting a spend cap on his phone stop my nephew from getting stuff sony?

RCS messages not working/ constantly verifying number

as per subject line really. partner swapped the sim from their old phone to their new phone (same brand of Android phone) which had no issues with rcs messages, but in the new phone its trying to verify the number constantly. if i go into their googl...

I cannot log onto my account

Hello, I cannot log into my O2 account. The username and password are correct, but the authentication message that is supposed to be sent my mobile number never arrive. Could you help me please?

Cant recieve calls or texts but can send and phone out

Had no joy with customer service everything they have suggested has failed. Reset network settings - didnt workRe-type phone number in the phone app, then network reset then power down phone - didnt workiMessage also wont activate on phone number. Th...

No available operators when abroad

Hi allWhen ever I travel to an EU country I cannot get online as there are no available network operators in manual search my roaming is switched on.

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