WhatsApp for Poco X5 Pro

This is almost always the proximity sensor reacting as if the phone is held to your ear, which pauses playback or routes audio to the earpiece instead of the loudspeaker. Make sure nothing is covering the small sensor area near the top of the screen, including a thick screen protector or your fingers. Test the sensor by dialing *#*#64663#*#* to open the hardware test menu and checking the proximity/P-sensor reading. If the reading is stuck, clean the top bezel and remove any tinted protector film; if it still misbehaves the sensor may be faulty and needs service. As a stopgap, play voice messages over the speaker by keeping the screen face-up and away from your face. See how others solved this on Reddit

Start by confirming the microphone permission: open Settings > Apps > Manage apps > WhatsApp > Permissions and make sure Microphone is set to Allowed. Then close other apps that might be holding the mic (voice recorder, call recorder, another messenger) since only one app can use it at a time. If recordings are still blank, clear the app cache via Settings > Apps > Manage apps > WhatsApp > Clear data > Clear cache, then reboot. Make sure WhatsApp is updated from the Play Store, as several recording bugs were fixed in later builds. See how others solved this on Reddit

HyperOS/MIUI battery optimization is usually suspending WhatsApp in the background, which blocks lock-screen alerts. Go to Settings > Apps > Manage apps > WhatsApp > Battery saver and set it to 'No restrictions', then enable Autostart on the same app page. Next open Settings > Apps > Manage apps > WhatsApp > Notifications and turn on lock-screen notifications, and in Settings > Notifications & Control Center confirm WhatsApp is allowed to show on the lock screen. Finally, open Recents, long-press the WhatsApp card and tap the padlock so the system stops clearing it from memory. See how others solved this on Reddit

WhatsApp needs media access plus its 'Media visibility' setting enabled to write incoming images into the Gallery. Open Settings > Apps > Manage apps > WhatsApp > Permissions and grant Files and media (Photos and videos), then in WhatsApp go to Settings > Chats and turn on 'Media visibility'. If photos still hide, check that there is no .nomedia file inside the WhatsApp Images folder using a file manager, then reopen the Gallery or reboot so it rescans the folder. See how others solved this on Reddit

Aggressive HyperOS/MIUI background management is killing WhatsApp after the screen turns off, so messages only sync when you reopen it. Set Settings > Apps > Manage apps > WhatsApp > Battery saver to 'No restrictions' and enable Autostart on the same page. Then open Recents, long-press the WhatsApp card and tap the padlock icon so the system stops clearing it from memory. It also helps to turn off any battery-saver or extreme power-saving mode in Settings > Battery while you have it enabled. See how others solved this on Reddit

System updates can leave a stale app cache and reset per-app battery rules. Clear the cache via Settings > Apps > Manage apps > WhatsApp > Clear data > Clear cache, then update WhatsApp from the Play Store and re-apply Battery saver > No restrictions and Autostart for it. Reboot once so the new firmware settles, then check Settings > Battery to see whether WhatsApp is actually a top drain or another app is the culprit before doing anything more drastic. See how others solved this on Reddit