Lost 4G after ios9 update

[Anonymous]

Hi

I have an iPhone 5S and last night did the update to ios9.  All went ok, phone worked well on home wifi, thought no more of it.

Went out this morning and realised I had no cellular connectivity.  I could make calls, and send texts, but when I tried to go on Facebook, send/receive emails, go on Safari etc it said I had no connectivity

I thought , "Ah, I know how to rectify this" and texted ACTIVE to 2020 , and received an immediate message back saying "We have had problems with your request for settings, please call us on 4445" .  So I did this, and the lady said she'd done something their end, I should restart my phone and all would be fine.

I did this and yes, I now have connectivity.  But only 3G.  Not 4G.  I called again to be told they have been having problems with the mast in my area of late , and coverage will come and go.  Now, I've always had 4G in this area, it was working fine yesterday, and now it's not.  I don't believe it's the mast.  I think it's something to do with the ios update changing settings.

Any ideas of what I can do please?

[Cleoriff]

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@jonsie wrote:

Apparently you can still. ......

http://www.pcadvisor.co.uk/how-to/mobile-phone/how-downgrade-from-ios-9-ios-8-reinstall-ios-8-uninst...

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There you go then.....you have your answer....roll back roll back...

[Chris_K · Accepted solution]

Hey all, sorry it took a few days but we've been getting things looked into.

With regards to any strange or odd bugs that may be present within iOS itself, that's not really something we can fix other than feeding it back. Based on the issues and info we've seen this doesn't appear to be an issue within our carrier file either.

So there's a few things from me on this subject:

1) We have received and approved of a small iOS9 update which we expect to push out from this evening. Via OTA update this should be a small update and it should improve any issues with private VPN service. If this is what has been causing you issues, this may help resolve it

2) If the issue is specifically 4G data (switching 4G off and enabling 3G = everything works fine) then please let us know and we can look at this more closely.

3) If the issue is a total loss of mobile data (nothing on 2G/3G/4G) then this is more than likely down to one of a couple of things:

a) You're using a standard smartphone tariff or data bolt-on and your APN settings aren't 'mobile.o2.co.uk'

b) You're on the correct tariff/data bolt-on and using the correct APN, but your account isn't provisioned correctly

c) It could be coincidental and you've exhausted your mobile data allowance around the same time as your iOS update, or the mast/local network in your area is experiencing some issues (check your postcode here > http://status.o2.co.uk/)

If you have updated to iOS9 and getting no mobile data or no signal at all, I'd suggest the following:
- Backup anything important and do a full factory reset. If that works, restore your backup/data and you're golden!
- Test your SIM in another handset and/or in another location. If data works in the other phone then you know it's an issue with your device (whether hardware/software...). If data works in your phone in another location then your phone, SIM and account is fine - the issue is network/mast related
- If still not getting anywhere, get in touch with us via our many contact methods so one of our Guru's can check your account for any issues and to check the provisioning side of things too: http://www.o2.co.uk/contactus

[Anonymous]

Just updated my iPhone with the new 9.0.1 update and nothing has changed. Idata apn still doesn't work, guess I'll have to keep using the mobile.o2.co.uk setting for the foreseeable future. 

[MI5]

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@Anonymous wrote:

Just updated my iPhone with the new 9.0.1 update and nothing has changed. Idata apn still doesn't work, guess I'll have to keep using the mobile.o2.co.uk setting for the foreseeable future. 

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Have you checked to see if you are on data for iPhone?

[Anonymous]

i will double check that but it seems to much of a coisidence that it stopped working right after i installed ios 9

[Sammy_boy]

Same as above, tried I data and no Internet at all on 3 or 4G. Still working with Mobile settings with iOS 9.0.1. I'm on iPhone data plan, though with me just changing to a sim only terrific I'll double check that.

[jonsie]

O2 advice is to change the apn but I would be interested to know if this limits any 'normal' usage....

[Chris_K]

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@jonsie wrote:

O2 advice is to change the apn but I would be interested to know if this limits any 'normal' usage....

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My apologies if my previous post caused any confusion but to clarify - if you do have an iPhone tariff or bolt-on then the idata APN should work, and should be what's being used. Only if you have a normal smartphone tariff or data bolt-on, should you be using the mobile APN (idata won't be provisioned and won't work).

Realistically there's no real difference here for a customer - the mobile APN will work and give data fine and will be no different to how data works on the idata APN. However, visual voicemail will only work if you're using idata - that's the only real difference.

For some people, it's entirely possible - and even likely - that prior to iOS 9 they were using the mobile.o2.co.uk APN due to being on a smartphone tariff, and then after updating to iOS 9 it reset this back to idata.o2.co.uk - and if you're on a smartphone tariff, then idata won't be provisioned on the account and thus won't work. I suspect this may be one of the main culprits for some of you having data issues since iOS 9.

[MI5]

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@Chris_K wrote:

For some people, it's entirely possible - and even likely - that prior to iOS 9 they were using the mobile.o2.co.uk APN due to being on a smartphone tariff, and then after updating to iOS 9 it reset this back to idata.o2.co.uk - and if you're on a smartphone tariff, then idata won't be provisioned on the account and thus won't work. I suspect this may be one of the main culprits for some of you having data issues since iOS 9.

That's most likely tbh....

[Anonymous]

Turns out I didn't have an idata tariff on my account and that's why the idata apn wouldn't work. They activated it for me and all is working again. Seems like the iOS 9 update had reset it back to the right settings but as it wasn't activated on my account it wouldn't work. Thanks for all your help on this matter everyone.