All firmware updates distributed via SDS 20 are signed with Stihl’s private RSA key. A repacked tool cannot generate valid signatures. If you try to flash a modified firmware, the battery or tool will permanently brick (no recovery possible).
You're looking for information on the Stihl SDS 20 download repack. Here's what I found: stihl sds 20 download repack
Let’s address the elephant in the workshop immediately: In fact, searching for a “repack”—a term commonly associated with cracked or modified software—is not only futile but potentially dangerous for your equipment, your computer, and your safety. All firmware updates distributed via SDS 20 are
Diagnostic tools require precise drivers for USB adapters and interfaces; unofficial versions often fail to connect or can potentially brick your hardware during a firmware flash. Alternative Meaning: Safety Data Sheets You're looking for information on the Stihl SDS
Most "free" diagnostic downloads contain trojans designed to steal sensitive business data.
Official safety documentation for fuels, lubricants, and accessories, which are freely available on STIHL's official site .