Xiaomi
Mark All Messages as Read auf Xiaomi
Unread counters in the Messages app come from the notification badge system tied to each conversation thread. Every time a text arrives without being opened, MIUI keeps a small unread flag on that chat, and these add up quickly if several people write to you at the same time.
Instead of opening every thread individually, MIUI offers a shortcut that clears all unread flags in one action. Open the app and follow Tap on Messages ➔ Open the Menu ➔ Tap on Mark all as read. This removes every unread badge across all conversations immediately.
If you only want to clear specific chats instead of all of them, tap and hold a conversation in the list. This switches the list into selection mode, letting you tap additional threads to include them. Confirm with Mark as read to clear only the selected conversations, leaving the rest untouched.
Use the full Mark all as read option when your inbox is cluttered after being offline for a while. Use the selection method when only a few specific chats need clearing and the rest should keep their unread status as a reminder.
Marking messages as read does not delete or archive them, it only removes the visual unread indicator. Content and message order stay exactly as before.