[Help!] Fail To Update iOS 12 And Lose WeChat Contacts

Have you ever suffered losing iPhone contacts caused by following reasons? You deleted WeChat contacts intentionally or mistakenly. The USB is disconnected accidentally when you are transferring logs, and WeChat crashed. iPhone is suddenly powered off and you can't find all your WeChat history after restarting. iPhone dropped to the ground and unable to restart,etc. Failed to update and lose all WeChat contacts. No matter what kinds of scenarios you have been experienced, it c...