How can I contact him when the other party of WeChat blacked you out?

Send a friend verification application: you can try to send a friend verification application to the other party, and explain your situation in the application, hoping that the other party will cancel the blocking operation so that you can get in touch again.

You can call with another mobile phone number, or you can buy a card and call it with your family's mobile phone or landline. If you just dial the phone number and happen to have the other party's network mode, then it is very convenient to choose network phone contact, such as QQ and WeChat.

Wechat was hacked. The way to contact him is to contact her by text message or telephone.

After being hacked, you can find other contact information through the data cached by your mobile phone, so that WeChat can be blacklisted.

You can find it in the group chat. If you are in a group with each other, you can join this group to find a friend's business card and then add a friend. Because whether it is deleted or blacked out, if the other party doesn't agree, we have no chance to add the other party back.

You can try to add each other with other micro signals. If the other party pays attention to the official WeChat account, you can talk to the other party through the background of the official WeChat account. Add WeChat, usually by mobile phone number or qq, or WeChat name. If you have a mobile phone number, you can call or send a message.