Great News! O2 Mobile Broadband Customers on 3G Tariffs have been moved to 4G for Free O2 have recently enabled 4G for their mobile broadband customers*, that have a 4G ready device (tablet, dongle and smartphone only) and a 3G tariff – at no extra cost. Has 4G been enabled for you? If you have been migrated to 4G, a 4G sign will appear on your […]