: Professional industrial automation services like UnlockPLC or PLCHMI Unlock offer paid, managed recovery for forgotten passwords.
A few XINJE XC and XD series PLCs manufactured before mid-2021 have a that clears user program and password. This does not work on 2021+ firmware without additional steps.
Exploiting Vulnerabilities in XINJE PLC Program Tool | Claroty
The search for "Xinje PLC password crack 2021" refers to software tools or methods designed to bypass or recover passwords on Xinje brand Programmable Logic Controllers (PLCs).