WhatsApp for LG Ray

A bloated media folder is usually the cause, since WhatsApp saves every received photo and video into its own folders that the Gallery has to scan. Open Files (or My Files) and go to Internal storage > Android > media > com.whatsapp > WhatsApp > Media, then clear out the WhatsApp Images, WhatsApp Video and Sent subfolders you no longer need. Next clear the Gallery cache via Settings > Apps > Gallery > Storage > Clear cache. To stop new media from flooding the Gallery, open WhatsApp > Settings > Chats and turn off Media visibility. See how others solved this on Reddit

WhatsApp on Android rolls features out gradually, so an older build will lack the newest options even when others already have them. Open the Google Play Store, search WhatsApp, and tap Update if the button is shown; if it only says Open, you already have the current public release. For an early look at upcoming features you can join the beta from the Play Store listing (scroll to 'Join the beta'), but beta builds can be less stable on older LG hardware. See how others solved this on Reddit

On Android the volume pop-up only shows the slider for the stream you are currently using, so during a WhatsApp call the side keys control 'Call volume' and may show just a slider rather than a number. Press a volume key once, then tap the chevron or three-dot icon next to the slider to expand the full panel where Media, Ring and Call levels appear. If no slider shows up at all, check Settings > Sound (and Settings > Accessibility) to confirm the volume controls and on-screen indicators are enabled. See how others solved this on Reddit

Failed video calls almost always come from a weak data connection, missing permissions, or a stale app version. In Settings > Apps > WhatsApp > Permissions make sure Camera and Microphone are allowed, then turn off any Battery saver or Data saver mode that restricts WhatsApp in the background (check Settings > Apps > WhatsApp > Battery and Mobile data). Finally, update WhatsApp from the Play Store and test the call on stable Wi-Fi, since spotty mobile data is the most common reason video calls never connect. See how others solved this on Reddit