DHW2449T-S-PRO vs S-PV

hieppo

hieppo

Young grasshopper
Aug 19, 2019
45
1
Toronto
Hi,
Recently was given a DHW2449T-S-PRO and a DHW2449T-S-PV. Based on search, the main difference PRO has 1/1.8" vs 1/2.9" as far as I can tell. However, software/firmware wise, the PRO has a modern blue theme web interface and the all important feature record to NAS that I am looking for. The PV has the older grey theme with no NAS support.

Was wondering, it is is possible to flash the PRO firmware onto the PV version? Or better does any one know the link to another firmware that has NAS support.

Thanks in advance.
 
Then it probably wont
Storage FTP; SFTP; Micro SD card (support max. 256 GB)


Generally no you cant update different model cameras with FW meant for another
 
Yeah normally, i i would never update any FW not meant for another. However, The name of the file sort of matches the model. Though from the web page description indicate otherwise with different model name.

This is the name for the HW2449T-S-PV (DH_IPC-HX2X4X-Kant_MultiLang_PN_V2.860.0000000.34.R.250415.bin)
While the HW2449T-S-PRO is (DH_IPC-HX2XXX-Hugo_MultiLang_PN_V3.120.0000000.17.R.250514.bin)

The PRO mask the same and even more model than just 2449.

Anyway, was asking if anyone out there tried to update.
 
I've rarely seen a camera FW updated that added features to match an existing higher up model. The 2449 series are cheap and under powered with 1/2 the RAM. The PRO model is almost a real camera with a 1/1.8 sensor

The 3 series is similar, a little better, with the only one I would recommend being the HDW3449H-AS-PV-PRO
 
I really hate how FTP/SFTP does not capture the video the same way as when writing to NAS. NAS is more continuous recording while FTP takes clip and sends it.

I might just take the jump and try to force update with the PRO firmware and see. It is just software. The only issue may be it does not have enough storage.

:) if it is brick, I am sure one of you guys can help with unbricking it. :)
 
More reason to flash it now. Tried connecting to my freenas FTP and SFTP.. Both fail the test connect function. SFTP shows a "Right Verification Failure "and FTP shows "Server connection failure."

I got 3 new Dahua to play with 2449T-S-PV, 2449T-S-PRO and a 3849H-AS-PV. Both the PRO and 8MB has NAS support so it is ready. However, I am stuck on how to record on teh 2449-PV. I hate to have to use a microSD.

And here coming from Hikvision with an extremely old firmware everything works as describe, NAS, FTP and SFTP. But they are very old 2MB resolution with 1/1.2" sensor. I would keep these but they are dome type and the dome glass is so old and night time is a nightmare to keep it clean so that IR does not make everything white.
 
My guess is you force it you brick it.. Sure can be recovered most times.. Trying to update I am going to guess it will just fail..

About your other cameras.. I personally would buy a different housing and remove the guts from the Dome cameras and enter them into a larger then life housing that was meant for a Box camera. I know that Dahua has a few models seeing I have some IR some that are not IR and some that even have IR and Wiper.. Anyway could take the PCB from the dome cameras and mount into a external housing and use them as Box cameras.. Give a nice camera a new life.. That is what i would do but then not everyone takes these cameras apart like I do..

Just an idea.. Here is a Hikvision version with Wiper.. Not sure about the IR might need external.. But with a great sensor like the 1/1.2in should work great..
www.hikdistribution.com

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Just an idea.
 
Good idea since I have 10 of these .https://www.bhphotovideo.com/c/product/1162153-REG/hikvision_darkfighter_series_ds_2cd4526fwd_izh_2mp.html. I made a mistake they are only 1/1.8".
These were dying and I was able to replace a single cap that was hissing and bulging. But they only work for a short period and most of them refuse to power up now. There is only one working. Plus the mainboard is really wide hard to fit into something narrow.
I was going to buy replacement dome glass until they started dying and decided not.
 
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Understand. I am not sure how narrow the Hikvision box is. I know that my Dahua boxes work great doing a conversion. I had some indoor cameras that I wanted to use outdoors in an area that didn't have cover. I mean I have put some indoor cameras outside under cover and they are still working going on 5 years with no issues. But in this case my Motorized Varifocal cameras were going to be exposed to the rain and snow so I removed them from the round dome housing and mounted them in my Dahua Boxes and the boards have all fit. I mean a couple needed some bridge work but others was able to just mount on the normal box camera mount..

However if your cameras are infact past repair then no need to pay for the extra box for new life.. If you are able to repair then I would even with them being 1/1.8in sensors are normally nice enough cameras to fix.. When you see 1 cap that is bad to be honest I would replace them all.. Sometimes this can be Surface Mount other times through hole.. Just want to replace with same voltage or little higher is ok but what is important is that you put in same value.. Don't put a 4.7uf in place of a 470uf or a 100 in place of a 1000uf.. Also because of the type of use you will also want to find one with the correct temp value. If you were to say have one that was meant for 105c and has a life span of 2000 hours could live 8000 hrs running at lower temps like 85c. However using a 85c cap in a device like an IP camera or any camera for that matter will have a very short life span. The 105c caps electrolyte is designed to withstand higher temps, this offering better chemical stability and a higher boiling point compared to the electrolyte in a 85c cap.. Most importantly to understand having a quality supply of Caps from a good vender is important as there are many people out there that are selling things that are not as marked..

Cameras that won't power up from POE or 12/24v if it is a dual power enabled device could have more wrong then just the caps being bad or because of this going on to long has taken out the Fuse or some other protection part of the circuit.
 
@Revo2Maxx thanks for a good detail reply. I been replacing the 470uF with a 25V version (versus original is 10V that I can't find at the cheap close by electronic store). They tend to work for a bit. But what I did notice if I kept it plug for a long while in when it stopped working, the unit will not power up anymore even replacing the cap.
I guess I could replace all 3 caps (470uF/50V, 470uF/10V and a 33uF/63V electrolyics). I have to go shopping for some. I mean I have 10 of these cameras and now only 1 survive and currently working. I just hate the acrylic dome since it get dirty so easily and scratched up. Nighttime flare is a pain.
I wish there is a schematic of these boards so i can easily check the fuse or something easy. I am just an amateur electronic hobbyist so no oscilloscope for me. Plain volt/amp meter is all I have.
 
Revo2Maxx said:
Cameras that won't power up from POE or 12/24v if it is a dual power enabled device could have more wrong then just the caps being bad or because of this going on to long has taken out the Fuse or some other protection part of the circuit.
Click to expand...
I would doubt it is a fuse. Replacing a cap won't fix a fuse. More than likely, you have a component in the power supply regulation circuit (possibly a semiconductor) that's failing and drawing more current than it's designed for. The issue will only worsen as the component continues to fail and become a short circuit. That's when you'll see some serious smoke as the component burns up. At least you'll know what part is defective, because it will become rather crispy.
 
SFTP is more secure but more overhead so a little slower. NAS is much faster as long as you set trust within your network, that is the only thing that is securing your setup.
 
Understand.. A nice scope isn't always needed. Just need to know what the difference are between Diodes and TVS, Fuses and current resistors.. There are many different types of things that can go wrong.. Also there are some times that even with the best meters a diode or other items in a circuit will need to be removed to confirm if it is really bad.. If you were doing a lot of Camera repairs and not just a hobby fun. I would look into buying a Short Finder. Just keep in mind that injecting voltage incorrectly is a bad idea. Having one that you can use don't mean you should always use because of the ability to really destroy things with them lol.. Knowing where to inject voltage for repairing these cameras area also important. Knowing how to follow a PCB is important as well.

Having 10 cameras with 9 of them being bad. If there is something on 1 that has failed can get the values off the other. And in some cases even taking a part from one to repair another..

About fuse that is just saying some other things that over time can in fact go bad in these cameras.. I am not suggesting that is the issue.. However in some cameras and I have repaired more then my share as I don't like to see things that don't need to end up i the waste fields end up there.. If they are quality enough I will repair.. But a cap that has failed in a Short can infact kill a fuse.. Fuse is only rated for so much.. If it exceeds this it will open to try and protect the rest of the circuit..

Was just offering some other things to look at when a camera fails it isn't always bad caps..
 
JPmedia said:
I would doubt it is a fuse. Replacing a cap won't fix a fuse. More than likely, you have a component in the power supply regulation circuit (possibly a semiconductor) that's failing and drawing more current than it's designed for. The issue will only worsen as the component continues to fail and become a short circuit. That's when you'll see some serious smoke.
Click to expand...
Oh well, I had some good fun with these 10 cameras. I was using 9 and had a single redundancy to swap one out if issue. But the numbers that failed required me to replace 6 of them with 2MB-1/2.8" Hikvision not as good as the 2MB-1/1.8". Then I just got 3 brand new Dahua 2449T-S-PV and PRO and 3849H-AS-PV.

I doubt I can fix these monster 1/1.8" but throwing them away seems such a waste.
 
hieppo said:
SFTP is more secure but more overhead so a little slower. NAS is much faster as long as you set trust within your network, that is the only thing that is securing your setup.
Click to expand...
Sounds like it can be risky and dare I say, less reliable as more components are introduced to the system. Then there's the support that goes along with the added NAS.

Not a design for everyone, that's for sure
 
Revo2Maxx said:
But a cap that has failed in a Short can infact kill a fuse.. Fuse is only rated for so much.. If it exceeds this it will open to try and protect the rest of the circuit..

Was just offering some other things to look at when a camera fails it isn't always bad caps..
Click to expand...
My point was, if a component takes out a fuse, unless you replace the component and the fuse, the device will not function. He mentioned he replaced some caps and it would work for a while then quit again. No mention of replacing a fuse (and fuses are typically not used in small low power electronic devices, that is usually handled by a semiconductor as they react more precisely to lower current circuits like cameras)

Something in the supply circuit is failing and loading down the circuit, using more current and causing other components to fail. I've found that it's usually a failing semiconductor (diode, transistor, regulator, chip, etc.).
 
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