WhatsApp for Infinix Hot 50 Pro+

This is XOS aggressive battery management killing WhatsApp in the background. Go to Settings > Apps > WhatsApp > Battery and set it to 'No restrictions' (or 'Allow background activity'), then open the Phone Master app and add WhatsApp to the protected/whitelisted apps so it isn't force-closed. Also turn off any 'Power saving' or 'Smart power' profile under Settings > Battery, since these throttle messaging apps until you manually open them. See how others solved this on Reddit

Most of these glitches come from a stale WhatsApp cache or an outdated build on XOS. First clear the cache via Settings > Apps > WhatsApp > Storage > Clear cache (don't pick Clear data, that wipes chats), then update WhatsApp from the Play Store. If the glitch is tied to your keyboard, switch the default keyboard under Settings > System > Languages & input > On-screen keyboard, since the preinstalled keyboard often misbehaves inside WhatsApp. See how others solved this on Reddit

Infinix's XOS does not include a native, reliable WhatsApp call recorder, and Android blocks apps from capturing the other party's voice on standard VoIP calls, so any built-in option usually records only your side. The dependable workaround is to use the system screen recorder (swipe down the Quick Settings panel and tap Screen Record) with internal audio enabled before you start the WhatsApp call. Be aware that recording calls without consent may be restricted by law in your region. See how others solved this on Reddit

XOS ships with preloaded apps and ad placements that you can mostly disable. Go to Settings > Apps, open the unwanted apps (like Palm Store, Phone Master, the preinstalled news/browser apps) and tap Disable or Uninstall where allowed, and inside Phone Master turn off the ad/recommendation toggles. To cut ads in the notification shade, go to Settings > Notifications & status bar and revoke notification permission for those system apps. See how others solved this on Reddit

XOS updates sometimes ship bugs that hit performance and app stability. First restart the phone to clear stale state, then update your core apps including WhatsApp from the Play Store so they match the new OS build. If lag or crashes persist, back up your chats to Google Drive (WhatsApp > Settings > Chats > Chat backup) and do a factory reset via Settings > System > Reset options, which clears the messy state left behind by the update. See how others solved this on Reddit

It handles WhatsApp, calls and light multitasking fine, but the same XOS background-killing means you should set it up correctly first. Lock WhatsApp in the recent-apps view and set Settings > Apps > WhatsApp > Battery to 'No restrictions' so messages keep arriving on a phone you check less often. Also enable WhatsApp's two-step verification (WhatsApp > Settings > Account > Two-step verification) and confirm it's linked to the correct number under WhatsApp > Settings > Account. See how others solved this on Reddit