How to recover WeChat message from backup?

Not all people used to backup messages on the social media applications such as WeChat, Tencent QQ. If we replace a new phone, or reinstall the application, we will lost all the message and conversations. Sometimes, the application become unresponsive so that you have to reinstall to fix the problem. And if you reinstalled the application, how can we recover the lost messages and conversations?
How to recover WeChat message from backup?
If you have backed up your messages to computer, you can restore from the backup.
Ways to back up your WeChat messages from iPhone to computer
First, you need to download WeChat for Windows on your computer. Login in and go to Settings>Chat Backup,choose Backup on phone to save your WeChat history from the iPhone to your computer. And then tap to authorize the backup, then the chat history will be saved to your computer. You can restore your files from the backups when you need.
How to transfer iPhone Wechat to other devices?
If you want to transfer your wechat history to another device, you can use the WeChat built-in feature Chat Log Migration to make it.
On your mobile Wechat, tap Settings> General>Chat Log Migration, tap the button Select chat Transcript. You need to log in to this account on other phone and scan this QR code. After the scanning completed, it will start to migrate automatically. After the migration process ends, the WeChat data has been transferred from your old iPhone to the new iPhone device.
If you have no backup, you should not give up. In most of cases, you still can recover your lost Wechat data with an iPhone data recovery software.
Connect your iPhone with computer and run the H Data iPhone data recovery software. Your iPhone will list on the software interface.
Click “Scan iPhone for deleted files” on the software interface and choose a backup to scan.
After scan, all the recoverable WeChat data will display here.
Preview and check the conversation or photos you need to recover.
Choose a recovery directory to save your selected data.
The H Data iPhone data recovery software can restore Wechat data like, all the conversations between you and your friends, the groups, official accounts, and even your deleted contacts or groups. With the Demo version, you can preview all the photos, and part of messages. You can not preview the voice message and full preview of the conversations.
This software cannot only recover data on WeChat, but also all your contacts, messages, notes, and all photos of different applications on your iPhone. In a word, you do not need to worry too much about your data after data loss. But back up your data on iPhone regularly is necessary and useful than to use the data recovery software.