hi, Thanks for the guide.
i just have my note N7105 but tethering was broken for 4.1.1 and 4.1.2.
my these few days troubleshooting seems like point to errors of iptables, which caused by lack of "CONFIG_NETFILTER_XT_MATCH_OWNER" setting in the stock kernel.
so, i'm looking for custom kernel which enable this.
based on your guide, flashing custom kernel with mobile odin can be resettable.
that is a good news as the phone have 2 years warantty.
your post cleared thing up (which flashing custom recovery is not resettable).