Sp1-u4.bin -

Many manufacturers publish an MD5 or SHA256 checksum for sp1-u4.bin. Use PowerShell ( Get-FileHash sp1-u4.bin ) to verify your file matches the official hash. If it doesn’t, the download is corrupt or malicious.

Do not use a random flashing utility. Use the one provided by your SSD vendor (e.g., SSD Toolbox from ADATA, SP Toolbox from Silicon Power). sp1-u4.bin