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The quieter you become, the more you are able to hear.

Hi, What worked for me is what I learned from @riogrande75 , who said that you don't need the pd-x.cramfs.img. So remove this one from you stack of .img files before you flash it, and of course also remove run dp from your commands.txt file (and then run commands.bat again of course)...

I managed to flash the device just like I flashed my bricked VT02000A. It took a while before it actually picked up the files from the TFTP server, but all went well. While discussion with a local technician, the fact that my VTH blacked out seems to be related with the SIP v4 version I flashed...

Hi, I recently succeeded in updating my VTO2000A to the latest software (v4). After a lot of trouble to get the VTO flashed using the TFTP method explained in another post, I am now confronted with a black VTH1550CH device.... Grumbl... When I plug-in a PoE cable connected to my VTNS1060A...

Next challenge, upgrading my VTH1550CH, as also that one now seems to be dead. Guess I'll have to give that one the latest firmware as well. Not sure how I'll be able to do that, as I don't get any ping or IP whatsover. But that's for another thread.

Well, many thanks to @riogrande75 and @TheDude for their persistance in helping me out here!! Actually, the last post from @riogrande75 did it. I fetched his suggested 501655_General_Overseas_VTOXXX_Eng_P_16M_SIP_V1.000.00.0.R.20170425.zip file, and modified my comments.txt file like this: run...

YESSSSSSSSSSSSSSSSSSSSSSSSSSS!! I did it. ;-) And then you suddenly look at the brand new Web Interface!

HI @riogrande75 I fetched the v4 file you referred to in a previous post already ( The following files are in there: When I am connected to my VTO via my VTN PoE switch, I get 192.168.1.108 entries in my Wireshark, and can easily follow the flash process. See the two Wireshark screenshots...

Followed you advise, waited for 5' after flashing, however no success. I would at least expect I can ping it on 192.168.1.108, but nothing. Also, the VTO2000A documentation says that the default IP address is 192.168.1.110... <Cut> 3.1 Modify IP Address VTO default IP address is...

So, after many trial & error situations, I finally managed to get to see this in my TFTP window: accepting requests.. Open TFTP Server MultiThreaded Version 1.64 Windows Built 2001 starting TFTP... alias / is mapped to C:\Dahua_TFTPBackup\root\ permitted clients: all server port range: all max...

At what point would one think of updating the bootloader? As soon as all other options are exhausted? I can't seem to get mine unbricked with all advice I read here. I have been trying it over and over again, reading through the many posts already many times, and still no success. <sigh> So I...

Well, when seeing the failed.txt showing up, it doesn't seem like it was a success, right? Also, something I noticed is that I can get an IP address when I connect the whole lot to my PoE switch. When I connect the device to a dedicated switch and power it up with a 12V DC connector rather than...

@riogrande75 @TheDude When using the EASY method, just with the update.img file, I have exactly 10 ping replies as a window for the upgrade. As soon as the image.img file gets addressed, the pings stop, and all seems to fail. See pic. Suggestions?

Hmm, thanks for reminding me about this connector! However, with the cable connectors which I got delivered together with my UART CP2102, they are way to thick to connect onto that little device, so I guess I'll first have to find other connecting cables which fit onto that tiny connector first...

Well, so far no success. Tried already with two different DLINK switches, will check with a NETGEAR one later this evening. I did indeed follow the instructions on configuring the network stack, so just wondering if the device is still alive and is going to be responsive at all. Weird I even...

Hi there, Yeah, sure. Seems like I am stuck as I don't seem to get any reply from my VTO at all. So I don't even see the 192.168.1.108 address at boot time. Hence, not much happens, so I guess I will have to turn away from this EASY method and go for the SERIAL method. What about you? Did it...

Hi there! Hope you are doing well. So, i moved back to ... square one. EASY method to start with before eventually turning to the SERIAL method. (1) I made a DC12 connection to the device, which successfully powers up. I see a red light and a green light tuned on constantly. No blinking...

@riogrande75 @TheDude I jumped from the 'easy' unbricking thread to this 'serial' one, as you both absolutely right that this is the place here to ask questions around the serial interface. And my apologies, as my VTO2000A of course has this same connector as shown by @riogrande75 in a...

Weird, when I look at my VTO, I don't seem to find the pins you marked in purple in the pic in your previous post... Is yours also a VTO2000A or is it an other model? Hence I was connecting it as per my other pic, however this is not the correct connector apparently....(below right)? Please...

Thanks, will try this. Can you confirm that the order of where I think the pins are is actually correct? If you look at the device, and have the power connector at the bottom left, then am I correct that this is the order of the pins at the connector at the bottom right? RX TX GND VCC?

Can someone clearly confirm to me which pins are used on the VTO2000A for the serial connection? If you look at the device, and have the power connector at the bottom left, then am I correct that this is the order of the pins at the connector at the bottom right? RX TX GND VCC? I can see my...