No "Chinese mod" is needed — Telegram's official language platform handles it:
- Method 1 (recommended): open the official Simplified Chinese pack link in any chat and tap Apply;
- Method 2: Settings → Language, search for Chinese, pick a pack and apply;
- Method 3: open a pack link shared by a friend.
The interface refreshes instantly and syncs to your phone, tablet and desktop. To go back, switch to English in Settings → Language.