Locate the MD5, SHA-1, or SHA-256 checksum listed on the vendor's download page. Run a local cryptographic hash check on your downloaded file to confirm it matches the source. If the hashes differ, the file is corrupted and must be re-downloaded.
Which (Windows, Mac, Linux) is running on your TFTP server? i tftp upgrade firmware version 1255 download install
=> setenv ipaddr 192.168.1.50 => setenv serverip 192.168.1.100 => tftp 0x80000000 v1255.bin => erase 0x9f020000 +0x200000 (adjust for your flash layout) => cp.b 0x80000000 0x9f020000 0x200000 => reset Locate the MD5, SHA-1, or SHA-256 checksum listed
Download the exact binary image file for matching your precise hardware model and revision number. Verify the file extension (typically .bin , .img , or .tar ). Locate the MD5