Originally Posted by pacman1891
So the best plan is the $30 for 3GB tablet plan then.
This prepaid plan is the one I use for my Nexus 7 2012 3g model. It works great.
I did not try it on the Nexus 7 2013 4g model because it requires a different (new) SIM. The prepaid plan is *locked* to one IMEI and one SIM number so you can *not* change either value on the website. I tried. But, I did not call to try because it would be too difficult to switch back and forth.
Since Google is blocking AT&T tethering, it was not worth me buying a month of prepaid and using up a SIM just to test if LTE works or not. I considered going to the AT&T store instead, and asking if my Nexus 7 4g/LTE (IMEI) was supported on LTE.
I'm going to test tethering on AT&T on inactive SIM with the old Android version JSS15J first.
So I just yanked my AT&T prepaid SIM from my Nexus 7 3G and inserted in already running Nexus 7 4G with Airplane Mode On. I turned off Airplane Mode. In Settings More I tried "Manage mobile plan" but it sent me to link for DataConnect and after login stated "The device you are trying to update on your account cannot be performed as an update. You may add this device as a new device." I closed Chrome.
But, at this point the AT&T prepaid SIM was working. I already had a Setting Shortcut for Tethering & portable hotspot but it was empty and tethering gone in settings. So I ran FoxFi and Wi-Fi tethering failed. USB tethering on Windows 7 x64 worked with downloaded app
from FoxFi website. In speedtest on PC with USB tethering I got 7.4Mbps down, 1.1 Mbps up.
The Nexus 7 4G/LTE device showed H service and not LTE, probably because LTE does not work on this DataConnect device in my account being locked to my Nexus 7 2012.