https://community.o2.co.uk/t5/Tech-Support/Data-not-working-in-UK-or-Italy/m-p/1796496#M56969 <P><SPAN>Hi,</SPAN></P><P><SPAN>I bought an O2 SIM with 25GB data, but mobile internet doesn’t work — neither in the UK nor in Italy. Only WhatsApp messages go through.</SPAN></P><P>&nbsp;</P><P><SPAN>Can you please check if there’s any issue with my SIM?</SPAN></P> Wed, 04 Jun 2025 06:07:12 GMT Farida 2025-06-04T06:07:12Z https://community.o2.co.uk/t5/Tech-Support/Data-not-working-in-UK-or-Italy/m-p/1796496#M56969 <P><SPAN>Hi,</SPAN></P><P><SPAN>I bought an O2 SIM with 25GB data, but mobile internet doesn’t work — neither in the UK nor in Italy. Only WhatsApp messages go through.</SPAN></P><P>&nbsp;</P><P><SPAN>Can you please check if there’s any issue with my SIM?</SPAN></P> Wed, 04 Jun 2025 06:07:12 GMT https://community.o2.co.uk/t5/Tech-Support/Data-not-working-in-UK-or-Italy/m-p/1796496#M56969 Farida 2025-06-04T06:07:12Z https://community.o2.co.uk/t5/Tech-Support/Data-not-working-in-UK-or-Italy/m-p/1796498#M56970 <P><SPAN>These are some tips to try :</SPAN></P><UL><LI>&nbsp; Reboot phone.</LI><LI>&nbsp; Manually search for a different network</LI><LI><SPAN>&nbsp; If using an iPhone, change data APN to&nbsp;&nbsp;</SPAN><SPAN><STRONG>mobile.o2.co.uk</STRONG></SPAN></LI><LI>&nbsp; Call customer service to check for any roaming bars</LI><LI><DIV>&nbsp; Or if you message O2 using the social media links below, they should be able to help you with this</DIV></LI><LI>check APN settings here :&nbsp;<A href="https://www.apnsettings.org/britain/o2-uk-5g-apn/" target="_blank" rel="noopener">O2 UK 5G APN Settings 2025 - 5G 4G APN Settings</A></LI><LI><LI-PRODUCT title="Guide: How to find help &amp;amp; contact O2" id="Guide058"></LI-PRODUCT>&nbsp;</LI></UL> Wed, 04 Jun 2025 06:38:26 GMT https://community.o2.co.uk/t5/Tech-Support/Data-not-working-in-UK-or-Italy/m-p/1796498#M56970 jonsie 2025-06-04T06:38:26Z