Mcdonald's app switch, because it can't be opened later. This may be because your English is not correct. After pointing out the correct English, you can open it. Re-enter the correct English McDonald's app on the Internet and it will be easy to open it.

Operating tool: Xiaomi 9.

Operating system: miui 1 1.0.

McDonald's app.

1. Open the mobile phone McDonald's app, click "My" in the lower right corner to enter a new page, and click "Settings" at the bottom of the page.

2. Enter a new page and click "Change" after "Language".

3. Enter a new page, switch languages and click OK.