The author of the Crafting Portals mod made sure that crafting portals in Minecraft on Android was no longer a problem for players. Everything will become easier if you decide to download the mod and rely on it!
The mod for Minecraft PE allows you to craft three new items – two types of portals and enderit. You can quickly create portals to Hell and the Edge. No longer need to suffer for a long time with the construction and remember the location of the blocks, you just need to download the mod and follow the recipes in the game. You can also use these portals on your map, there will be no compatibility problems in MCBE. Good luck!