WhatsApp for Poco M5s

WhatsApp's in-app camera is a stripped-down capture tool that doesn't use the M5s's full sensor, so it produces softer, grainier shots than the stock app. Instead of the in-chat camera, open your phone's regular Camera app, take the photo, then in the WhatsApp chat tap the paperclip (attach) icon, choose Gallery, and send the full-quality image. To preserve quality, open WhatsApp > Settings > Storage and data > Media upload quality and set it to HD. See how others solved this on Reddit

HyperOS/MIUI aggressively kills WhatsApp in the background to save battery, which blocks incoming call notifications. Go to Settings > Apps > Manage apps > WhatsApp, turn on Autostart, then open Battery saver (or Battery restrictions) on that same page and set it to No restrictions. Also open Recent apps, swipe down on WhatsApp's card and tap the lock icon so the system stops clearing it from memory. See how others solved this on Reddit

Usually another app is still holding the microphone, or WhatsApp lost its mic permission. First confirm access in Settings > Apps > Manage apps > WhatsApp > Permissions > Microphone and set it to Allow. Then fully close any other app that may be using the mic (games, voice recorders, Google Assistant) from Recent apps. If it persists, restart the phone to release the mic, and review which apps can use the microphone under Settings > Privacy > Permission manager > Microphone. See how others solved this on Reddit

HyperOS DND mutes all notifications by default unless you add exceptions. Go to Settings > Sound & vibration > Do Not Disturb and set apps or people as allowed (priority) so WhatsApp can break through. For specific people, open the WhatsApp chat, tap the contact's name, choose Custom notifications, and you can keep priority contacts notifying you even while DND is on. See how others solved this on Reddit

Much of the M5s sluggishness comes from MIUI/HyperOS system ads and bloat rather than from your apps. Turn off ads under Settings > Passwords & security > Authorization & revocation and disable msa, then open apps like Security or File Manager, go into their own settings, and switch off Receive recommendations. To free space, clear app caches via Settings > Apps > Manage apps, and remove old media in WhatsApp > Settings > Storage and data > Manage storage. See how others solved this on Reddit

The M5s does receive the HyperOS update, and it generally improves stability and notification handling, so it's worth installing once it appears under Settings > About phone > System update. Before updating, back up your chats via WhatsApp > Settings > Chats > Chat backup to Google Drive, since a major OS update can occasionally reset app permissions. After updating, re-check WhatsApp's Autostart and battery settings, because HyperOS may re-apply background restrictions that block calls and notifications. See how others solved this on Reddit