Can not update 4gb console for a long time now. Error 42FE-0000-0080-0300-8007-0070

i got error in my updates also

42fe-0000-0080-0300-8007-2751

I get 2 codes 417F-42FE-1600-267F-C000-0185 and 417F-0000-0080-0300-8007-0070, when I test the connection it makes it all the way to testing xbox live connection and fails then says to update, wont update, then gives error codes

Dunno if this means anything but the error code just changed and now I get this:

396b - 0000 - 0080 - 0300 - 8007 - 0070

dont know the modem or router brands or model numbers

wireless connections

status codes: 3F4A 0000 0080 0300 0570,

3F4B 0000 3080 8007 0070,

3F4B 0000 3080 050C 8007 0070

I am having the same issue with my nephews account. I have been trying to do a system update for an Xbox 360 E 4GB console. I have received several errors they are the following: 416B-0000-0080-0300-8007-0070, 416B-0000-0080-00300-8007-04SD,416B-0000-0080-0300-8007-2751
and the most current 416B-4174-1900-267F-C000-0185 (which was a clean CD error which was that step was taken and still wouldn't update the console.) I have burned the file to CD and received the following code C000-0185 and USB states the file is too large.
I know I am not having internet issues because I have two other older consoles which both are connected to live right now. The USB drive is a 16GB Sandisk (non xbox 360 brand.)