iPhone 5s stuck on 3G (4G pay as you go go go tariff)

[Anonymous]

Just looking for any ideas, really.

I ordered a new 4G pay as you go go go SIM from o2 - popped it into the phone and immediately saw that I had 4G reception. However, as soon as my number was transferred to the new SIM it's now stuck on 3G. I live in London, and have been out and about, but it's still saying 3G (a speed test confirms that i'm still receiving 3G speeds).

I've contacted support, who couldn't see anything wrong - they said to go to an o2 store, which I did today. They thought there might be an issue with the SIM - they game me a new one, but that's still stuck on 3G.

The phone has been rebooted / airplane moded many times, and can confirm that 4G is enabled in settings. Carrier settings are version O2 15.6

I'm pretty much stuck. I've got the £15 monthly 4G tariff on my account. My gut feeling is that it's an account issue - but o2 can't see anything wrong.

[Anonymous]

The timeline of events was this:

• 1.Ordered a 4G pay as you go go go SIM online
• 2.SIM arrived - immediately popped it into the iPhone 5s - two bars of 4G
• 3.Switched back to old SIM while number transfer was taking place
• 4.Once old SIM stopped functioning I put the new SIM back in - only 3G available
• 5.Contacted support, rebooted, reset network settings, connected the phone to iTunes, etc - still only 3G
• 6.Visited O2 store - they checked my account & phone - all seemed fine. Transfered number to another new SIM
• 7.I checked the back of the new SIM and it didn't say 4G so I asked the staff twice if it was compatible with 4G - they said it was (but actually it isn't according to online support)
• 8.Have ordered another new 4G sim

Sorry for the confusion.

[adamtemp64]

At any time did you ask to be put on payg go go 4g?

[Anonymous]

yep, and I can see it on my account in 'my o2'

[adamtemp64]

Well that makes it very strange lets hope a new 4g sim cures it

[Anonymous]

thanks - fingers crossed. I'll report back here either way.

[Anonymous]

Hope all goes Ok for you.

Hopefully you can then enjoy the 4g speeds

[Anonymous]

The new SIM arrived today, and now have good 4G (18mb down, 15mb up - not bad for an office in central London).

The previous issue must have been SIM related.

[Anonymous]

Good outcome.

Enjoying those speeds.

32.8 download and 17. Upload in my area.