Change Language on 5-Inch Machine
In case your machine is currently set to Chinese.
Step 1: Enter Developer Password
Enter the developer password 80515 instead of your standard admin password.
Step 2: Inside the Developer Menu
The developer menu looks like the image above when in Chinese. The language setting is hidden directly beneath the first menu item (highlighted in orange in the picture).
Step 3: Select Language
Use the keypad to select "English" and confirm with Enter – your machine's language is now set back to English.
Note for 22-inch machines: You can change the language just as easily as on an Android smartphone by accessing the standard language settings in the menu.