This looks like a 2013 Nexus 7. If thats the case the 2013 does not have 4G but rather HSPA+. Can you please confirm that this is a 2013 and thus still has 3G technology?
Tim S. asked on Jan 9, 2014
This model is ASUS-1B32-4G, and is 4G compatible.
George from Groupon replied on Jan 9, 2014