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Thank you, bought another USB-to-TTL chip and it works now ) Probably, someone will need that in future ) HiWatch DS-N308 / 2P (C) NVR pins are the following: Pin 1 (marked with triangle) = 3.3v Pin 2 = RX Pin 3 = TX Pin 4 = GND

Hello, I'm trying to recover HiWatch DS-N308/2P(C) NVR (admin account damaged during firmware update and password recovery do not work now). Connected COM port to USB-to-TTL as described (driver set up, 115200, 3 wires connected to according pins), but nothing can be shown on putty. Port is...