How to change the pinyin letters of the mobile phone keyboard into uppercase letters? Why are the letters in the settings uppercase and the keyboard lowercase?

Turn the phone keyboard into letters, and then press the up arrow to turn it into capital letters. Set uppercase, and don't press the up arrow icon for keyboard lowercase. Here, taking Xiaomi mobile phone as an example, the specific operation method is introduced for reference:

1. First open the note in your mobile phone, and then click the+sign in the lower right corner. You can also open any page, such as WeChat and QQ. The operation method is the same.

2. After creating a blank page, turn the phone keyboard to the letter input method, and then click the up arrow icon on the left.

3. After clicking the up arrow icon, the letters will be capitalized automatically.

4. Finally, enter the content as needed.