Boston November 29, 2021 7:55 am What You Need to Know About the 3G Shutdown Major cellphone carriers will soon shut down their 3G wireless networks and it will affect more devices than you might expect. US & World Videos 2:12 Flowers missing from memorial for fallen Marine in Lynn 1:05 Marking construction safety week in Boston 5:31 Inside the takedown of Mass. catalytic converter theft ring 2:43 ‘On the Dot' to redevelop stretch of Dorchester Avenue 1:49 Finalists in math competition hope their model helps ease housing crisis