These require user intervention. You highlight a specific address range in the hex editor and run a script. Typically used for older ECUs where auto-calculation is unstable.
Cracks and keygens labeled as "Checksum plugins" are a leading vector for ransomware in the tuning industry. We have seen reports of tuners losing their entire map libraries because they ran a malicious .exe claiming to be an EDC17 plugin. winols checksum plugin download
The internet is littered with broken links and malicious downloads. Below are the safest and most reliable sources for your checksum plugin download. These require user intervention