The firmware is wrapped in an unsupported format (like .rar or .7z ) instead of a standard .zip format.
The Realme Flash Tool is the official utility for flashing stock ROMs and unbricking Realme smartphones. However, many users encounter a frustrating roadblock during the process: the error.
Prevention recommendations
Here’s a helpful, step-by-step guide to fix the error in the Realme Flash Tool (often used for rolling back from Realme UI 3.0/Android 12 to older versions).
The official Realme Flash Tool is Windows-only. Running it via Wine or virtual machines often causes this error due to file system translation issues. Use a native Windows PC.
If 7-Zip throws an error while extracting, your download is corrupted.
Determine if your Realme device uses a MediaTek or Snapdragon processor.
Do not use the default Windows Extractor. Download the latest version of 7-Zip or WinRAR.