Hi ipsecurity,
i´ve managed to revive the cam DS-2DE3A400BW-DE (F1) (S6). I made it by IDLE ( Python GUI ) + Firmware_V5.5.803_211112 + Script ( hikvision_tftpd.py )...i transfered the Firmware by Python 2.7.18 and voila the cam boot and all works fine with the latest Firmware_V5.5.803_211112 !!!!! Now I have a new (old) Cam.
i´ve managed to revive the cam DS-2DE3A400BW-DE (F1) (S6). I made it by IDLE ( Python GUI ) + Firmware_V5.5.803_211112 + Script ( hikvision_tftpd.py )...i transfered the Firmware by Python 2.7.18 and voila the cam boot and all works fine with the latest Firmware_V5.5.803_211112 !!!!! Now I have a new (old) Cam.