o2 nearly new

[phammond53]

I have just purchased nearly new I-phone SE from o2 and ported my number over successfully but my Apps are not working on mobile data (I-data) everything works fine on WI-FI at home. 

[MI5]

@phammond53 

You have mobile data on and apps have permission to use data?

Are you using your old sim or a new one?

If new, have you done a sim swap? Guide: Sim Swap: a mini guide 2017 update 

[Cleoriff]

@phammond53 
just to check, if you have iData, change the APN to mobile.o2.co.uk and see if your apps work then.

Otherwise

Give O2 a call on  202 or 0344 809 0202 (Contract)  4445 or 0344 809 0222 (PAYG)

Or you can message O2 on social media on Instagram https://o2uk.co/O2CIG), Facebook ( https://o2uk.co/O2CFB) , Twitter ( https://o2uk.co/O2CTW). 

[phammond53]

Ported number over from Vodafone to new o2 sim. Found data set to 5g auto but I think phone is only 4g?

[phammond53]

Ported number over from Vodafone to new o2 sim. Found data set to 5g auto but I think phone is only 4g?

[MI5]

@phammond53 

apn is irrelevant in the UK, as we have discussed before, it is only relevant when roaming.

You can change the network setting to 4g but that shouldn't make any difference either.

Please check and answer the Q's I asked in the first reply.