WhatsApp for LG X mach

This usually means WhatsApp flagged the registration as risky, often after too many code requests, a recent SIM swap, or an outdated app. Wait 30-60 minutes, then update WhatsApp from the Google Play Store, make sure your LG X mach has the correct date and time by opening Settings > System > Date & time and turning on Automatic date & time, and request the code again. If it keeps failing, switch from Wi-Fi to mobile data (or vice versa) and choose to verify by phone call instead of SMS. See how others solved this on Reddit

The delay is usually Bluetooth audio routing competing with Android Auto rather than a WhatsApp fault. On the LG X mach, go to Settings > Connected devices > Bluetooth, forget the car, then re-pair it fresh, and inside the Android Auto app settings disable any unused media apps so WhatsApp audio gets priority. Keeping both Android Auto and WhatsApp updated from the Play Store and clearing Android Auto's cache under Settings > Apps > Android Auto > Storage resolves most stutter and lag. See how others solved this on Reddit

Yes. Wipe it via Settings > System > Reset > Factory data reset, sign in with a Google account, install WhatsApp Business from the Play Store so it can coexist with your main WhatsApp number, and register the spare SIM or a VoIP number. The LG X mach can then live on Wi-Fi as a kitchen display, baby monitor, or dedicated chat device while staying logged in to a separate WhatsApp account. See how others solved this on Reddit

WhatsApp is end-to-end encrypted on Android exactly as it is on iPhone, so messages are equally private; the main difference is backup location. On the LG X mach your chat backup goes to Google Drive, set it under WhatsApp > Settings > Chats > Chat backup, and turn on end-to-end encrypted backup with a password or 64-digit key. Also enable two-step verification under WhatsApp > Settings > Account > Two-step verification to block anyone from re-registering your number. See how others solved this on Reddit