Firmware files (typically .ssu or .bin ) and TP lists (usually .bin or .dat ). 🛰️ Part 1: Updating the TP List

Keep a small, pre-formatted USB drive inside your WS6933 carry case, loaded with the latest stable firmware and a readme.txt with step-by-step instructions. That way, you’re always update-ready—no internet required at the time of upgrade.

: A mini-USB to USB-A cable is usually provided in the package to connect the meter to a PC or laptop.