WhatsApp for Xiaomi 14T Pro

HyperOS aggressively restricts background activity, which can block WhatsApp's heads-up call banner while still letting the ringtone through. Go to Settings > Apps > Manage apps > WhatsApp > Battery saver and set it to No restrictions. Then open Settings > Apps > Manage apps > WhatsApp > Notifications and make sure the Calls channel is enabled with Floating notifications and Lock screen turned on. Finally, enable Autostart for WhatsApp under Settings > Apps > Permissions > Autostart so the call screen can wake the display. See how others solved this on Reddit

The Chinese HyperOS build ships without Google Play Services, which WhatsApp relies on for push notifications, so messages often only arrive when you open the app. Install the Google services framework (Google Play Services and Play Store) manually, or flash the Global/EEA ROM. After installing, sign in with a Google account and reboot so push delivery registers. Then grant WhatsApp Autostart in Settings > Apps > Permissions > Autostart and set its Battery saver to No restrictions. See how others solved this on Reddit

HyperOS Dual Apps clones WhatsApp into a separate space that often loses background data and Autostart permission, so the clone can't reach WhatsApp's servers. Go to Settings > Apps > Dual apps and confirm WhatsApp is enabled, then for the cloned instance grant Autostart (Settings > Apps > Permissions > Autostart) and set its Battery saver to No restrictions. Also allow background mobile data and Wi-Fi for the dual app. Note that the cloned account must be registered with a different phone number than your primary WhatsApp. See how others solved this on Reddit

A recent HyperOS Gallery update changed how it scans media folders and can stop indexing the WhatsApp media directory. First, in WhatsApp open Settings > Chats and turn on Media visibility so a .nomedia file isn't keeping the folder hidden. Then clear the Gallery app's cache under Settings > Apps > Manage apps > Gallery > Clear data > Clear cache and reopen it to force a fresh media rescan. If the folder still doesn't appear, rebooting the phone often triggers the media scanner to re-index it. See how others solved this on Reddit

This is usually a HyperOS ring setting rather than hardware, as vibrate-on-ring can get disabled after an update. Go to Settings > Sound & vibration and turn on Vibrate on ring (and Vibrate in silent mode). Also check that Settings > Sound & vibration > Haptic feedback intensity isn't set to off. For WhatsApp calls specifically, confirm vibration is enabled in the app's own Settings > Notifications. If it still doesn't vibrate, reboot the phone, as a stuck haptics state often clears after a restart. See how others solved this on Reddit