on how to safely back up your chats before attempting an installation?
Never. The Play Store only updates the official app. If you update, you will lose your Plus features and break the installation. Manually download new Plus APKs only. download whatsapp plus for android version 5.1
WhatsApp Plus is an unofficial modded version of the official WhatsApp Messenger. Developed by independent programmers (most notably AlexMods and the old GBWhatsApp team), this APK offers enhanced customization options that the official app blocks. on how to safely back up your chats