Guys, there is a reason disabling the proxy settings still does not allow you to connect.
Amazon has made some small changes so when you bypass the proxy you cannot resolve the destination host address.
There may be ways to even go through that limitation but:
1. You will be caught, actually you may already be flagged if you tried to override the proxy.
2. Amazon may be pissed and ban your device.
If you really need access to internet, then you may go ahead and replace the internal SIM. There is a thread explaining it.