Hikvision DS-7804N-E1/4P v3.4.6 build 160324 TFTP still allowed for firmware update?

[aplcom]

Hikvision DS-7804N-E1/4P v3.4.6 Build 160324 TFTP still allowed??

Hi,

Does anyone know or can confirm that the old method of TFTP transfer of firmare still works lor the latest delivered NVR's?

I have my laptop (Lenovo running Windows 7 Home Prem) ip set to 192.0.0.128, firewall disabled (also have set tftpserver.exe for all access in advanced firewall settings just in case), I power up my DS-7804, I can see and ping 192.0.0.64 but no way will the NVR connect to the tftpserver - tried many many times!

Running wireshark on the laptop I get the following output from presumably the NVR (but only IPV6 not IPV4 traffic)?

Is my only option left using the serial terminal?

Thanks for any feedback on this.

Best regards. Otto.


PS: I bricked my DS-7804 when I STUPIDLY downloaded and via web/gui installed the 7604 firmware instead of the 7804 firmware. It gladly accepted and validated the 7604 firmware and installed it no issue but after re-boot, I get the Hikvision logo, then after a minute LOUD beeps and auto reboot!!


Output from wireshark:

No. Time Source Destination Protocol Length Info
1 0.000000 WistronI_51:9b:b4 Broadcast ARP 42 Who has 192.0.0.64? Tell 192.0.0.128

Frame 1: 42 bytes on wire (336 bits), 42 bytes captured (336 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Length Info
2 0.835906 WistronI_51:9b:b4 Broadcast ARP 42 Who has 192.0.0.64? Tell 192.0.0.128

Frame 2: 42 bytes on wire (336 bits), 42 bytes captured (336 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Length Info
3 1.834278 WistronI_51:9b:b4 Broadcast ARP 42 Who has 192.0.0.64? Tell 192.0.0.128

Frame 3: 42 bytes on wire (336 bits), 42 bytes captured (336 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Length Info
4 2.833576 WistronI_51:9b:b4 Broadcast ARP 42 Who has 192.0.0.64? Tell 192.0.0.128

Frame 4: 42 bytes on wire (336 bits), 42 bytes captured (336 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Length Info
5 3.255966 :: ff02::16 ICMPv6 90 Multicast Listener Report Message v2

Frame 5: 90 bytes on wire (720 bits), 90 bytes captured (720 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: IPv6mcast_16 (33:33:00:00:00:16)
Internet Protocol Version 6, Src: ::, Dst: ff02::16
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
6 3.495910 :: ff02::1:ff4b:64f2 ICMPv6 78 Neighbor Solicitation for fe80::b80e:cdff:fe4b:64f2

Frame 6: 78 bytes on wire (624 bits), 78 bytes captured (624 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: IPv6mcast_ff:4b:64:f2 (33:33:ff:4b:64:f2)
Internet Protocol Version 6, Src: ::, Dst: ff02::1:ff4b:64f2
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
7 3.831079 WistronI_51:9b:b4 Broadcast ARP 42 Who has 192.0.0.64? Tell 192.0.0.128

Frame 7: 42 bytes on wire (336 bits), 42 bytes captured (336 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Length Info
8 3.831332 ba:0e:cd:4b:64:f2 WistronI_51:9b:b4 ARP 60 192.0.0.64 is at ba:0e:cd:4b:64:f2

Frame 8: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4)
Address Resolution Protocol (reply)

No. Time Source Destination Protocol Length Info
9 3.831348 192.0.0.128 192.0.0.64 ICMP 74 Echo (ping) request id=0x0001, seq=2/512, ttl=128 (reply in 10)

Frame 9: 74 bytes on wire (592 bits), 74 bytes captured (592 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2)
Internet Protocol Version 4, Src: 192.0.0.128, Dst: 192.0.0.64
Internet Control Message Protocol

No. Time Source Destination Protocol Length Info
10 3.831676 192.0.0.64 192.0.0.128 ICMP 74 Echo (ping) reply id=0x0001, seq=2/512, ttl=64 (request in 9)

Frame 10: 74 bytes on wire (592 bits), 74 bytes captured (592 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4)
Internet Protocol Version 4, Src: 192.0.0.64, Dst: 192.0.0.128
Internet Control Message Protocol

No. Time Source Destination Protocol Length Info
11 3.846781 192.0.0.128 192.0.0.64 ICMP 74 Echo (ping) request id=0x0001, seq=3/768, ttl=128 (reply in 12)

Frame 11: 74 bytes on wire (592 bits), 74 bytes captured (592 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2)
Internet Protocol Version 4, Src: 192.0.0.128, Dst: 192.0.0.64
Internet Control Message Protocol

No. Time Source Destination Protocol Length Info
12 3.846984 192.0.0.64 192.0.0.128 ICMP 74 Echo (ping) reply id=0x0001, seq=3/768, ttl=64 (request in 11)

Frame 12: 74 bytes on wire (592 bits), 74 bytes captured (592 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4)
Internet Protocol Version 4, Src: 192.0.0.64, Dst: 192.0.0.128
Internet Control Message Protocol

No. Time Source Destination Protocol Length Info
13 3.972149 192.0.0.128 192.0.0.255 BROWSER 255 Domain/Workgroup Announcement WORKGROUP, NT Workstation, Domain Enum

Frame 13: 255 bytes on wire (2040 bits), 255 bytes captured (2040 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol Version 4, Src: 192.0.0.128, Dst: 192.0.0.255
User Datagram Protocol, Src Port: 138, Dst Port: 138
NetBIOS Datagram Service
SMB (Server Message Block Protocol)
SMB MailSlot Protocol
Microsoft Windows Browser Protocol

No. Time Source Destination Protocol Length Info
14 4.495912 fe80::b80e:cdff:fe4b:64f2 ff02::2 ICMPv6 70 Router Solicitation from ba:0e:cd:4b:64:f2

Frame 14: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: IPv6mcast_02 (33:33:00:00:00:02)
Internet Protocol Version 6, Src: fe80::b80e:cdff:fe4b:64f2, Dst: ff02::2
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
15 4.860863 192.0.0.128 192.0.0.64 ICMP 74 Echo (ping) request id=0x0001, seq=4/1024, ttl=128 (reply in 16)

Frame 15: 74 bytes on wire (592 bits), 74 bytes captured (592 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2)
Internet Protocol Version 4, Src: 192.0.0.128, Dst: 192.0.0.64
Internet Control Message Protocol

No. Time Source Destination Protocol Length Info
16 4.861102 192.0.0.64 192.0.0.128 ICMP 74 Echo (ping) reply id=0x0001, seq=4/1024, ttl=64 (request in 15)

Frame 16: 74 bytes on wire (592 bits), 74 bytes captured (592 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4)
Internet Protocol Version 4, Src: 192.0.0.64, Dst: 192.0.0.128
Internet Control Message Protocol

No. Time Source Destination Protocol Length Info
17 8.405853 fe80::b80e:cdff:fe4b:64f2 ff02::16 ICMPv6 90 Multicast Listener Report Message v2

Frame 17: 90 bytes on wire (720 bits), 90 bytes captured (720 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: IPv6mcast_16 (33:33:00:00:00:16)
Internet Protocol Version 6, Src: fe80::b80e:cdff:fe4b:64f2, Dst: ff02::16
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
18 8.505841 fe80::b80e:cdff:fe4b:64f2 ff02::2 ICMPv6 70 Router Solicitation from ba:0e:cd:4b:64:f2

Frame 18: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: IPv6mcast_02 (33:33:00:00:00:02)
Internet Protocol Version 6, Src: fe80::b80e:cdff:fe4b:64f2, Dst: ff02::2
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
19 8.835816 ba:0e:cd:4b:64:f2 WistronI_51:9b:b4 ARP 60 Who has 192.0.0.128? Tell 192.0.0.64

Frame 19: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Length Info
20 8.835836 WistronI_51:9b:b4 ba:0e:cd:4b:64:f2 ARP 42 192.0.0.128 is at 3c:97:0e:51:9b:b4

Frame 20: 42 bytes on wire (336 bits), 42 bytes captured (336 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2)
Address Resolution Protocol (reply)

No. Time Source Destination Protocol Length Info
21 12.515789 fe80::b80e:cdff:fe4b:64f2 ff02::2 ICMPv6 70 Router Solicitation from ba:0e:cd:4b:64:f2

Frame 21: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) on interface 0
Ethernet II, Src: ba:0e:cd:4b:64:f2 (ba:0e:cd:4b:64:f2), Dst: IPv6mcast_02 (33:33:00:00:00:02)
Internet Protocol Version 6, Src: fe80::b80e:cdff:fe4b:64f2, Dst: ff02::2
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
22 59.226024 :: ff02::16 ICMPv6 90 Multicast Listener Report Message v2

Frame 22: 90 bytes on wire (720 bits), 90 bytes captured (720 bits) on interface 0
Ethernet II, Src: c6:e7:cc:d2:c9:7c (c6:e7:cc:d2:c9:7c), Dst: IPv6mcast_16 (33:33:00:00:00:16)
Internet Protocol Version 6, Src: ::, Dst: ff02::16
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
23 59.765913 :: ff02::16 ICMPv6 90 Multicast Listener Report Message v2

Frame 23: 90 bytes on wire (720 bits), 90 bytes captured (720 bits) on interface 0
Ethernet II, Src: c6:e7:cc:d2:c9:7c (c6:e7:cc:d2:c9:7c), Dst: IPv6mcast_16 (33:33:00:00:00:16)
Internet Protocol Version 6, Src: ::, Dst: ff02::16
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
24 59.785891 :: ff02::1:ffd2:c97c ICMPv6 78 Neighbor Solicitation for fe80::c4e7:ccff:fed2:c97c

Frame 24: 78 bytes on wire (624 bits), 78 bytes captured (624 bits) on interface 0
Ethernet II, Src: c6:e7:cc:d2:c9:7c (c6:e7:cc:d2:c9:7c), Dst: IPv6mcast_ff:d2:c9:7c (33:33:ff:d2:c9:7c)
Internet Protocol Version 6, Src: ::, Dst: ff02::1:ffd2:c97c
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
25 60.785926 fe80::c4e7:ccff:fed2:c97c ff02::2 ICMPv6 70 Router Solicitation from c6:e7:cc:d2:c9:7c

Frame 25: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) on interface 0
Ethernet II, Src: c6:e7:cc:d2:c9:7c (c6:e7:cc:d2:c9:7c), Dst: IPv6mcast_02 (33:33:00:00:00:02)
Internet Protocol Version 6, Src: fe80::c4e7:ccff:fed2:c97c, Dst: ff02::2
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
26 63.984542 192.0.0.128 192.0.0.255 BROWSER 255 Domain/Workgroup Announcement WORKGROUP, NT Workstation, Domain Enum

Frame 26: 255 bytes on wire (2040 bits), 255 bytes captured (2040 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol Version 4, Src: 192.0.0.128, Dst: 192.0.0.255
User Datagram Protocol, Src Port: 138, Dst Port: 138
NetBIOS Datagram Service
SMB (Server Message Block Protocol)
SMB MailSlot Protocol
Microsoft Windows Browser Protocol

No. Time Source Destination Protocol Length Info
27 64.795834 fe80::c4e7:ccff:fed2:c97c ff02::2 ICMPv6 70 Router Solicitation from c6:e7:cc:d2:c9:7c

Frame 27: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) on interface 0
Ethernet II, Src: c6:e7:cc:d2:c9:7c (c6:e7:cc:d2:c9:7c), Dst: IPv6mcast_02 (33:33:00:00:00:02)
Internet Protocol Version 6, Src: fe80::c4e7:ccff:fed2:c97c, Dst: ff02::2
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
28 68.805795 fe80::c4e7:ccff:fed2:c97c ff02::2 ICMPv6 70 Router Solicitation from c6:e7:cc:d2:c9:7c

Frame 28: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) on interface 0
Ethernet II, Src: c6:e7:cc:d2:c9:7c (c6:e7:cc:d2:c9:7c), Dst: IPv6mcast_02 (33:33:00:00:00:02)
Internet Protocol Version 6, Src: fe80::c4e7:ccff:fed2:c97c, Dst: ff02::2
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
29 86.578277 192.0.0.128 192.0.0.255 BROWSER 243 Local Master Announcement OTTO-PC-G580, Workstation, Server, NT Workstation, Potential Browser, Master Browser

Frame 29: 243 bytes on wire (1944 bits), 243 bytes captured (1944 bits) on interface 0
Ethernet II, Src: WistronI_51:9b:b4 (3c:97:0e:51:9b:b4), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol Version 4, Src: 192.0.0.128, Dst: 192.0.0.255
User Datagram Protocol, Src Port: 138, Dst Port: 138
NetBIOS Datagram Service
SMB (Server Message Block Protocol)
SMB MailSlot Protocol
Microsoft Windows Browser Protocol

No. Time Source Destination Protocol Length Info
30 113.206504 :: ff02::16 ICMPv6 90 Multicast Listener Report Message v2

Frame 30: 90 bytes on wire (720 bits), 90 bytes captured (720 bits) on interface 0
Ethernet II, Src: 5a:dd:7a:d6:8d:7b (5a:dd:7a:d6:8d:7b), Dst: IPv6mcast_16 (33:33:00:00:00:16)
Internet Protocol Version 6, Src: ::, Dst: ff02::16
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
31 113.946476 :: ff02::1:ffd6:8d7b ICMPv6 78 Neighbor Solicitation for fe80::58dd:7aff:fed6:8d7b

Frame 31: 78 bytes on wire (624 bits), 78 bytes captured (624 bits) on interface 0
Ethernet II, Src: 5a:dd:7a:d6:8d:7b (5a:dd:7a:d6:8d:7b), Dst: IPv6mcast_ff:d6:8d:7b (33:33:ff:d6:8d:7b)
Internet Protocol Version 6, Src: ::, Dst: ff02::1:ffd6:8d7b
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
32 114.416464 :: ff02::16 ICMPv6 90 Multicast Listener Report Message v2

Frame 32: 90 bytes on wire (720 bits), 90 bytes captured (720 bits) on interface 0
Ethernet II, Src: 5a:dd:7a:d6:8d:7b (5a:dd:7a:d6:8d:7b), Dst: IPv6mcast_16 (33:33:00:00:00:16)
Internet Protocol Version 6, Src: ::, Dst: ff02::16
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
33 114.946481 fe80::58dd:7aff:fed6:8d7b ff02::2 ICMPv6 70 Router Solicitation from 5a:dd:7a:d6:8d:7b

Frame 33: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) on interface 0
Ethernet II, Src: 5a:dd:7a:d6:8d:7b (5a:dd:7a:d6:8d:7b), Dst: IPv6mcast_02 (33:33:00:00:00:02)
Internet Protocol Version 6, Src: fe80::58dd:7aff:fed6:8d7b, Dst: ff02::2
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
34 118.956275 fe80::58dd:7aff:fed6:8d7b ff02::2 ICMPv6 70 Router Solicitation from 5a:dd:7a:d6:8d:7b

Frame 34: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) on interface 0
Ethernet II, Src: 5a:dd:7a:d6:8d:7b (5a:dd:7a:d6:8d:7b), Dst: IPv6mcast_02 (33:33:00:00:00:02)
Internet Protocol Version 6, Src: fe80::58dd:7aff:fed6:8d7b, Dst: ff02::2
Internet Control Message Protocol v6

No. Time Source Destination Protocol Length Info
35 122.966374 fe80::58dd:7aff:fed6:8d7b ff02::2 ICMPv6 70 Router Solicitation from 5a:dd:7a:d6:8d:7b

Frame 35: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) on interface 0
Ethernet II, Src: 5a:dd:7a:d6:8d:7b (5a:dd:7a:d6:8d:7b), Dst: IPv6mcast_02 (33:33:00:00:00:02)
Internet Protocol Version 6, Src: fe80::58dd:7aff:fed6:8d7b, Dst: ff02::2
Internet Control Message Protocol v6

 

[Securame]

Re: Hikvision DS-7804N-E1/4P v3.4.6 build 160324 TFTP still allowed for firmware upda

Are you connecting direct from computer to NVR? If so, try it with a switch in the middle.

 

[aplcom]

Re: Hikvision DS-7804N-E1/4P v3.4.6 build 160324 TFTP still allowed for firmware upda

Hi,


(@securame - yes I'm using a switch with only my laptop and nvr! - thanks for your feedback reply!)


I found my answer from this thread "https://www.ipcamtalk.com/showthread.php/9467-DS-7604NI-E1-4P-DS-7608NI-E2-8P-and-DS-7616NI-E2-16P-Firmware-V-3-3-6-Build-151229/page2"

"
Re: DS-7604NI-E1/4P, DS-7608NI-E2/8P and DS-7616NI-E2/16P Firmware V. 3.3.6 Build 15

Hikvision NVRs do not respond to TFTP in the same manner as IPCs. A TTL-level serial connection (not RS-232 level) is required to unbrick these devices via the white 4-pin UART connector on the main logic board. With IP cameras, simply throwing up the Hikvision TFTP server with the proper firmware loaded into that directory is sufficient. Power on the camera, set the IPs accordingly, and done. It's a fairly straightforward recovery process once everything is set up correctly. NVRs are not the same. I've recovered many of these NVRs (the 3.1.x to 3.4.x upgrade bricks them every time) and all of them appear to be the same. While they still require TFTP for the transfer of the firmware itself, it's not automated like the IP cameras are.

IPCs have a version of U-Boot that within the first n seconds of power on, probe the network for a TFTP server at 192.0.0.128. If found, connect as client and attempt to pull digicap.dav, (The firmware), flash it, and reboot. (Sometimes the reboot doesn't happen I've found). In any case, that is an automated process.

NVRs on the other hand must be invoked manually. You need to PuTTY over serial/TTL directly into the boot loader to manually halt it. Once U-boot is stopped, there are a few prompts asking you for info. At this point, make sure your computer and recorder are both connected to your main network (no 192.0.0.128 necessary). It will ask you to set an IP for the recorder, then specify the IP of your TFTP server (your computer). It will start the firmware recovery process once you hit enter. It will not reboot after it's done, it requires hitting Enter in PuTTY over serial to finish it off (or a power cycle will work too).

What is remaining in my NVR stock from last year have already been bricked and firmware upgraded, so I'm not touching those again, but a friend of mine has a 7608 that is in need of a firmware upgrade which will result in a brick. I will write a step by step post sometime this week and link it here using that recorder. Details, screenshots and all. Give me until Friday. Have a few other things on my plate at the moment.


Sent from my iPhone using Tapatalk
"
​

 

[Securame]

Re: Hikvision DS-7804N-E1/4P v3.4.6 build 160324 TFTP still allowed for firmware upda

Wow, that seems... troublesome to say the least. Hopefully I will never need to go through that process :uncomfortableness:

 

[aplcom]

Re: Hikvision DS-7804N-E1/4P v3.4.6 build 160324 TFTP still allowed for firmware upda

Hi Securame,

Yeah, the price I need to pay for not being careful!! Anyways just ordered my USB TTL serial cable from taobao (rmb 3.50) - will feedback once received and whether successful restore!

 

[curryfire]

Re: Hikvision DS-7804N-E1/4P v3.4.6 build 160324 TFTP still allowed for firmware upda

Hi, I wish i had read this before i stupidly upgraded my firmware, did you get a chance to write up the restore process?

Edited to add: I looked at the link to the other post you referred too, If I flash using the USB TTL, what version of the firmware do I need to flash?

 

[nobody42]

Re: Hikvision DS-7804N-E1/4P v3.4.6 build 160324 TFTP still allowed for firmware upda

Thank You !