topic Re: Making phone calls and using mobile data in Germany in Other Products and Services

Making phone calls and using mobile data in Germany

earlybird1 — Fri, 15 Aug 2025 14:22:49 GMT

A couple of years ago I went to Germany and beforehand I checked at my local O2 shop that everything was working properly on my phone (OPPO A5 2020 Samsung Android) and that I would be able to use mobile data and make calls. Unfortunately when I got to Germany there were problems. It was okay when I was using the hotel Wi-Fi but away from the hotel I couldn't use mobile data and even worse I couldn't even phone people. It was very inconvenient. Does anybody have any ideas why that happened and what can I do to prevent it happening next time I travel in the autumn?

Re: Making phone calls and using mobile data in Germany

MI5 — Fri, 15 Aug 2025 14:49:20 GMT

@earlybird1

Some generic things to try:

Check data roaming is on in phone settings.

Manually search for and try other networks - even if flagged as forbidden.

Turn off 5g

Enable 4g calling (if on contract)

Change your data APN to "mobile.o2.co.uk" if not data is being received.

Check with O2 whether you have a roaming bar on your account. Do this via social media

If you message O2 on Facebook ( https://o2uk.co/O2CFB) or Instagram (https://o2uk.co/O2CIG) , they should be able to help.

If you are PAYG, calls will be difficult as you will need to switch phone to 2g or find an illusive 3g network.

Re: Making phone calls and using mobile data in Germany

jonsie — Fri, 15 Aug 2025 14:51:48 GMT

These are some tips to try :

Reboot phone.
Manually search for a different network
If using an iPhone, change data APN to mobile.o2.co.uk
Call customer service to check for any roaming bars
Or if you message O2 using the social media links below, they should be able to help you with this

Re: Making phone calls and using mobile data in Germany

earlybird1 — Sun, 17 Aug 2025 09:03:02 GMT

Yes, I am on PAYG so that probably made it more difficult. Thanks for your help.

Re: Making phone calls and using mobile data in Germany

earlybird1 — Sun, 17 Aug 2025 09:03:40 GMT

Thank you for replying and your helpful suggestions.

Re: Making phone calls and using mobile data in Germany

MI5 — Sun, 17 Aug 2025 09:26:49 GMT

You're welcome @earlybird1 and good luck.