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Hi, Help for what ?

please respond here

Hi, try to pusch * key during the boot, you must have prompt. After you can follow my instruction.

Is not a surge problem but à propagées death !!!

Hi, With new psu it should be worked fine

Good, Repair power suply must be very complicated and need some tools.... So the beter is to buy a new one, you can find the model on it : DPS-200PB-185 B Here for example : DPS-200PB-185 B For 190W Delta Electronics Server Power Supply - 365PowerSupply.com - Dell Power Supply | HP Power...

So is the problem, you must have 12-13VDC Did you eard some noise from the power supply ?

11,1V Dc, without main board connected? Please Check between yellow and black cable when connected

Hi, On thé power supply you must find how many volt you should find betwen the yellow and the black cable i mean 12DC Please check and let me know Regards

Yes it s the only way

First You must be connected to nvr with serial câble. 115200 8/N/1. Keep key * puch untel you have thé prompt with # So you will be able to pass comand for exemple help and enter. Try pléase and let you know

Hi, Do you know, putty,tftp server ?

More easy

Yes as you whant i think is more

Not sûre have thé default, how se can échange more simply ? Mail, teamviewer other, ?

During thé boot dis you see thé link on the nvr ethernet port? If yes you can test Ping nvr ip -t on the pc to know if thé nvr have the défault ip 192.168.1.108

Ok on your tftp server did you see the connection from the nvr ?

Hi Davidson, Stange. On mine i can t see enter key to stop autorun but not on your. You have not exactly thé same 5432 for me. You can try to enter key * many Time at the boot Time, you must have prompt with # So you should pass command run .... Let me know Regards

Hi all, You can find the files i used here: I use run dr run du run up https://www.grosfichiers.com/VUYfVEmFbnB Regards

Ok i ll reply tomorow in france is time to dodo « bonne nuit » Regards my friends

Hi, No is not because your files are old version, i will chearch on my pc, but how i can share here ? No problem your forum help me so if i can help you now Regards

Ok, Windows,what command did you passed on putty ?

Here you can find the zip file i used for firmware 4.0.zip and the tftp server tftpserver.zip hi, The nvr jas 192.168.1.108 255.255.255.0 and look aftrr tftp server on 192.168.1.1 Yes i think you can pass reset command. To be sûre i used whireshark. Regardd

Hi, Sorry for the delay :-( Here you can find the name of the file ai downloaded from dahua : General_NVR5XXX-4KS2_MultiLang_V4.000.0000001.0.R.20190930, i m looking for on my pc :rolleyes: I used "opentftpserverMT", but i thinks it should be working fine with any TFTP server. I posted the...

I successed so you must to Have a good day

Hi all I sucessed I was connected in serial port 115200/8/N/1 Stop autoboot with * key Started tftp server on my Pc with ip 192.168.1.1 255.355.255.0 pointed to unziped files downloaded from dahua Passed run dc (download customs....) Run dr (download Roms..) Run up (download image.img) nvr...