Before attempting any advanced recovery, always test default credentials. From 2021 firmware onward, XINJE has maintained certain factory defaults:
Demystifying XINJE PLC Password Security: Vulnerabilities, Recovery, and Mitigation xinje plc password crack 2021
From a cybersecurity perspective, if a 2021+ XINJE PLC password were trivially cracked, it would violate basic industrial safety standards (IEC 62443). XINJE has improved password hashing in recent firmware, making offline cracking infeasible without vendor cooperation. Before attempting any advanced recovery, always test default