Recovering recycle bin files: Open QQ browser, select "File" in the navigation bar, click three points in the upper right corner, and select "Recycle Bin". On the Recycle Bin page, find the file to restore, press and hold or right-click "Restore". After confirmation, it can be restored to its original position.

Backup and recovery: If the file has been backed up, you can select "Backup and Recovery" in QQ browser settings, and then select "Local Backup" to find the backup file and start recovery.

Data recovery software: You can use data recovery software to scan the device and try to recover the deleted files. However, care should be taken to avoid damaging or overwriting the data. (Note: There are risks in using data recovery software. It is recommended to back up the equipment data before operation. )