WhatsApp for Samsung Galaxy S10e

WhatsApp Web stays linked only while your S10e keeps WhatsApp running in the background, so battery optimization killing the app is the usual culprit. Go to Settings > Apps > WhatsApp > Battery and set it to Unrestricted, then in WhatsApp tap the three-dot menu > Linked devices and re-link to refresh the session. Also check Settings > Battery and device care > Battery > Background usage limits and make sure WhatsApp isn't listed under 'Sleeping' or 'Deep sleeping' apps. See how others solved this on Reddit

This usually happens when WhatsApp's microphone access or background activity is being cut off by One UI, so the call drops or stalls right after connecting. Open Settings > Apps > WhatsApp > Permissions and confirm Microphone and Phone are allowed, then under Battery set it to Unrestricted so the call isn't suspended. If you're on a modded or older WhatsApp build, reinstall the official version from the Play Store, since broken call handling is common on unofficial APKs. See how others solved this on Reddit

Silent WhatsApp notifications on One UI are almost always a per-channel sound setting or Do Not Disturb being active. Go to Settings > Apps > WhatsApp > Notifications > Message notifications and make sure a Sound is selected and the importance isn't set to Silent, then check that Settings > Notifications > Do not disturb is off. Inside WhatsApp, also confirm the chat isn't muted and Settings > Notifications shows your message tone. See how others solved this on Reddit

WhatsApp periodically drops support for older Android versions, but the S10e can run up to Android 12 (One UI 4.1), which stays well above WhatsApp's minimum requirement, so you're fine for now. Keep the OS current via Settings > Software update > Download and install, and always update WhatsApp through the Play Store rather than sideloading. If support ever ends, WhatsApp shows an in-app warning weeks ahead so you have time to back up your chats. See how others solved this on Reddit

Samsung's Dual Messenger creates a separate cloned WhatsApp whose media lives in a parallel folder, not the standard WhatsApp directory. Open My Files, tap the menu and enable 'Show hidden files', then look in Internal storage for a second WhatsApp folder (often under Android/media or a folder name with an added suffix). Because it's a clone, treat its chat backup separately from your main app and don't assume the two share the same backup. See how others solved this on Reddit

Modded versions like GBWhatsApp or WhatsApp Plus aren't worth it: they violate WhatsApp's terms of service and frequently trigger temporary or permanent bans on your number. They also miss security patches and can break calls and other features, so stick with the official app from the Play Store. If you want two accounts, use Samsung's built-in Dual Messenger under Settings > Advanced features > Dual Messenger instead of a mod. See how others solved this on Reddit