pnputil via command line with -f (force) switch.: Corrupted download. Fix : Re-download from a different mirror. Compare the file’s MD5 checksum against the one posted on the official forum (if available). Use certutil -hashfile R12943-mj2-r5370.zip MD5 in PowerShell.
The most helpful advice regarding any firmware download is to prioritize security. Searching for "R12943-mj2-r5370" on generic file-hosting sites or forums can be risky. Malicious actors sometimes disguise malware as firmware files. R12943-mj2-r5370 Software Download