: These are often firmware updates. Do not unzip these further unless the instructions specifically say to; they are usually uploaded directly to the handheld device via SD card or USB. 3. Troubleshooting
: These are typically the actual instruction manuals or "ReadMe" files. Use Adobe Acrobat Reader or a basic text editor to read them. sc25672-HAND.rar
: If you get a "Checksum Error," try downloading the file again, as .rar files often break if the download is interrupted. : These are often firmware updates