I recently changed smartphones from an unknown to Samsung, and I've lost my WhatsApp conversations. I want them on the new phone. I have reinstalled it on the new phone, and the msgstore.db.crypt ...
I have a contact who has a new phone number, so I update the old number with the new. But now when I check my sms conversations, I have 2 conversations: the "old" number conversation, and the "new" ...