How To Recover All My WeChat Conversation Without Using Backup?

  Got no memory left on my phone cuz WeChat has eaten it up? Don't want to lose contacts/messages. But I just delete some wechat conversations on my iPhone. It is too late  for me to back up. So can you help me to recover all my WeChat conversations without backup? Thanks. iPhone 6.  If you are a WeChat fan, you will find that WeChat messages including those photos, sights take up much space in your iPhone. So you need to clear them. Sometimes, you just delete WeChat conversations...