My WhatsApp has slowed down because of too many texts in the message database (thousands of texts in some threads). Now, I want to take a local backup of these chats for later retrieval (this part is important) and clean my WhatsApp completely. How do I do that?
Firstly, to update your local chat backup : Settings -> Chat backup -> Backup
Now, take a copy of
msgstore.db.crypt12 from Whatsapp -> Databases folder.
Then, uninstall WhatsApp app and delete WhatsApp folder, i.e, "clean my WhatsApp completely"
msgstore.db.crypt12, make Whatsapp -> Databases folders manually) then install WhatsApp app. In the setup it will say `Backup found,do you want to restore' : select yes.