In order to to the nether you need a portal.
A Nether portal is an obsidian structure that can transport players to or from the Nether dimension. USB doesn't come into it anywhere. The 'Minecraft USB nether portal' is just a YouTube fake.
walk in it
The get to the Nether in minecraft, you need at least 10 obsidian and a flint and steel. You need to make a Nether Portal, a 4x5 portal, and set it alight with the flint and steel.
Walk in the portal, and search for a nether brick building
If you are referring to the Nether portal panel block, which appears when a Nether portal frame is lit, its data value (ID) is 90. When placed without being in a Nether portal frame, you can still use it, however, you cannot place 2 of the portal block next to each other, or else they will both disappear.
Make a nether portal.
What the heck are the Netherlands? If you mean the Nether, then you get there through a Nether Portal. Plus you don't have to be in creative.
There is no way besides leaving the nether and making a new portal
No
A portal to the Nether requires ten Obsidian blocks (eco version) or fourteen Obsidian blocks for the full version.
Yes and no. Yes, you can go to a poor excuse for the nether and no you cant go to the real nether. The poor excuse is the nether reactor. It basically puts netherrack around you and spawns LOTS of free items -__- Just break one block of the netherrack and you are outside in the same world. Pathetic i know. Hopefully they add the real nether