How do you get nether bricks in minecraft pocket edition?

Answer 1

You need to build the nether core. Here is what you need:

• 4 gold blocks
• 12 cobblestone blocks
• 1 nether core reactor
• A sword to kill pigmen

The nether core is just a box of Obsidian or Netherrack were you can get the most of the items you can get like glowstone dust, gold ingot, iron ingot, and, for some reason, cactus.

Answer 2

You will have to get netherrack from the nether reactor. Once you have it, smelt the netherrack in your furnace and it will turn into nether brick ingots which you make into nether brick blocks. (If you dont have a nether reactor, Mine 36 pieces of gold, 3 diamonds, 6 iron, and some cobble and make the reactor and the frame).