https://us.community.samsung.com/t5/Galaxy-S26/Mobile-Data-not-working-S26Ultra-amp-Tesco-SIM/m-p/3508269#M4499 You've found the US Samsung Members community. All discussion here is tailored to US-specific devices and carriers. You may be better served posting in the community for your region:<BR /><BR /><A href="https://www.samsung.com/us/common/visitlocationsite/" target="_blank">https://www.samsung.com/us/common/visitlocationsite/</A> Tue, 17 Mar 2026 12:15:59 GMT Mujibar 2026-03-17T12:15:59Z https://us.community.samsung.com/t5/Galaxy-S26/Mobile-Data-not-working-S26Ultra-amp-Tesco-SIM/m-p/3508246#M4496 <P>Hi,</P><P>I've tried all the suggestions on this site to rectify the problem. By process of elimination, the SIM card works fine in my old S25Ultra. I really don't want to get in a circular blame game. I really need some help please.</P> Tue, 17 Mar 2026 10:55:41 GMT https://us.community.samsung.com/t5/Galaxy-S26/Mobile-Data-not-working-S26Ultra-amp-Tesco-SIM/m-p/3508246#M4496 RJG2Bucks 2026-03-17T10:55:41Z https://us.community.samsung.com/t5/Galaxy-S26/Mobile-Data-not-working-S26Ultra-amp-Tesco-SIM/m-p/3508269#M4499 You've found the US Samsung Members community. All discussion here is tailored to US-specific devices and carriers. You may be better served posting in the community for your region:<BR /><BR /><A href="https://www.samsung.com/us/common/visitlocationsite/" target="_blank">https://www.samsung.com/us/common/visitlocationsite/</A> Tue, 17 Mar 2026 12:15:59 GMT https://us.community.samsung.com/t5/Galaxy-S26/Mobile-Data-not-working-S26Ultra-amp-Tesco-SIM/m-p/3508269#M4499 Mujibar 2026-03-17T12:15:59Z