Hello Annxx99,
I Understand that you're unable to use Emoji Keyboard in your iPhone.
Here are some steps to Add Keyboard.
- Launch Settings from your Home screen.
- Tap on the General button.
- Swipe up to scroll down the menu.
- Tap on Keyboard.
- Tap on the Keyboards button.
- Tap on Add New Keyboard
- Swipe up to scroll down the list of options
- Tap on the keyboard you want to select.
Here is the instruction for add Third Party keyboard :
Add a third-party keyboard app
You can install third-party keyboard apps like you install other apps on your device. After you install a new keyboard, you need to add it before you can use it. Follow these steps:
- Go to the App Store and find the keyboard app that you want.
- Tap Get > Install.
- Enter your Apple ID password or use Touch ID if it's available on your device.
- Then add the new keyboard. Go to Settings > General > Keyboard > Keyboards > Add a New Keyboard and select the app that you installed.