DS7732N-E4 UART help board DS-80188-S4

K

korin1

Young grasshopper
Aug 27, 2017
45
8
hi felas,
i have a cp2102 usb-ttl and pl2303hx,

i have a hikvision DS7732N-E4, board DS-80188-S4

i bought the NVR from ebay , apparently its a chines one, (from ys7.com) ezviz
DS-7732N-E4,
i have uploaded by mistake a firmware which was an europe (DS-7708NI-E4)

after doing so, i've done some testing on it, i was connected to the UART on the board and i was looking how everything is running, when i enter PIAS/system/devicinfo on the url, it restarted the NVR automaticly and then it got stuck on the boot logo, and after 15 beeps it restart again.. a boot loop.

so now when i am pluged into the UART what i see is gibrish, some random letters ,
speed 115,200
data bits 8
stop bits 1
parity none
flow control XON/XOFF and NONE

i have tried with all speeds possible, and cp2102 usb-ttl and pl2303hx but i still see gibrish

i've partialy read bricked Hikvision NVR (DS-7716N/16P) which looks really familliar to my case but i got stuck on step one. since i dont have any input/output on the terminal. (if i had i could some what enable the tftp server and set an ip but i cant get that)
and i am not able to find anywhere the right firmware for my NVR.

thanks alot in advanced :)
 
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korin1 said:
ok, so what i need to do to make it work?
Click to expand...
I presume you are meaning initially the serial console.
Unless you have one of those 'cloned' interfaces, the manufacturer's drivers work best : Products
korin1 said:
so now when i am pluged into the UART what i see is gibrish, some random letters ,
Click to expand...
What are you actually plugged in to?
The PL2303HX will be for use on the serial TTL interface on the main board.
If you are connected via a 9-pin D-connector on the back panel, then it's likely to be a classic RS-232 interface, totally different signal levels.
 
i am connected to directly to the main board.
with this CP2102 USB 2.0 to UART TTL 6PIN Module Serial Converter Adapter Blue+Silver LW | eBay i downloaded this driver USB to UART Bridge VCP Drivers | Silicon Labs
result in gibrish
with this USB To RS232 TTL UART PL2303HX Auto Converter USB to COM Cable Adapter Module | eBay (windows 10 didnt need drivers)
result in gibrish
with this PL2303HX USB To RS232 TTL Auto Converter Module Converter Adapter For arduino | eBay
result in gibrish.

9 pin RS-232 is connected to the main board on 5 pins TX RX GND RTS CTS.
what i did was disconnecting the rs-232 ribon cable to this pins and attached to it the cp2102 & pl2303 instead.
 
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korin1 said:
what i did was disconnecting the rs-232 ribon cable to this pins and attached to it the cp2102 & pl2303 instead.
Click to expand...
That will be the cause of the problem, I believe.
alastairstevenson said:
If you are connected via a 9-pin D-connector on the back panel, then it's likely to be a classic RS-232 interface, totally different signal levels.
Click to expand...
TTL level signal are mono-polar, 0 to +3v
RS-232 signals are bi-polar, +-3 to +-15v
They are not compatible.
It looks like you need an RS-232 to USB convertor.
 
korin1 said:
will this one do
Click to expand...
In the sense of 'does the NVR require a modem or null-modem form of connection' - sorry, but I don't know.
And the product info linked to doesn't specify what it is either.
But no harm in trying - RS-232 is short-circuit proof, if it's wrong it won't do any harm, just won't work.
 
alastairstevenson said:
In the sense of 'does the NVR require a modem or null-modem form of connection' - sorry, but I don't know.
And the product info linked to doesn't specify what it is either.
But no harm in trying - RS-232 is short-circuit proof, if it's wrong it won't do any harm, just won't work.
Click to expand...
a litle update :)
i've bought the rs232 sparkfun SMD SparkFun RS232 Shifter - SMD - PRT-00449 - SparkFun Electronics and i am able to read the console! :)
so the rs232 sparkfun is connected to the DVR and CP2102 is connected to the sparkfun and the cp2102 usb is connected to the pc.
i am asked to enter CTRL+u but it seems that putty does not recognize any input of mine.
 
update :D
i have made it work. and now i am able to send commands/keys to putty, i guess it was a cable problem.

now i need the firmware for this chines hikvision which i dont find anywhere.
does any one have or know where i can find a firmware for ds-7732n-e4 ?
thanks ALOT in advance



Update 2:
i was able to find a firmware that the nvr accepted to upload.
this one NVR_78_79_EXX_V3.4.95_170626.zip
even tho it was meant for 77xx it worked.

no my new problem is chines , and non english interface.

i have tried hiktools05R1.rar but the problem is, the NVR does not allowing to flash it, as it see a different in the language (Hikvision FIRMWARE TOOLS - change language, extract files and create own firmware)

then after searching i came upon this. hikpack_2.5.zip
when using it with the NVR_78_79_EXX_V3.4.95_170626 the NVR did accept it to be flash BUT, the nvr is still in chines :s
[MCR] Hikvision packer/unpacker for 5.3.x and newer firmware

mtd hack wont work, because the ssh or the uart show me a new busybox with
Support Commands:
GetAnrCfgInfo GetAnrProcess GetAnrRecordList
ShowIpcAbility accessDvrSwitch channelPlayback
clearDisksMode ctrlArchDebug decStat
disableHB disableHik264 dspStatus
dvrLogInfo dt enableHB
enableHik264 enableWatchdog errputClose
errputOpen get3GMode getCMS
getCycleReboot getDbgCtrl getHardInfo
getIp getLastErrorInfo getPlayTestCtrl
getPort getServerInfo guiChkCfg
guiEnterMenuCount guiPrtScr guiStatus
helpm helpu i2cRead
megaDspConfig miscCmd netstat
outputClose outputOpen partRecDetails
ping printPart pthreadInfo
recorderChanInfo recorderFileInfo recorderFileKeyF rame
recorderHDIdle recorderMediaInfo recorderPAllocFi le
recorderParam recorderSegExtraInfo recorderStatus
sendATCom set3GPrint set3GEnable
searchInfo setGateway setIp
setlang setMtu setoutputmode
setPrint show8107coreUseInfo showCurPlayChanF ileInfo
showDeviceTemp showIpcMemInfo showNetIpcmInfo
showNetLinksInfo showPlayChanStatus showPlayClipFile
showPlayScreenInfo showPlayStatus showPlayTime
showPreviewInfo showShareSvcInfo showSpareWorkSta tus
showTagSysInfo showUserInfo showpu
t1 t2 transcodeResStat us
getDateInfo dmesg help

any idea suggestion u guys have to help me?
thanks
 
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korin1 said:
i see is gibrish, some random letters
Click to expand...
4bit.png
For the ones who will google this thread searching for the solution, I can suggest check the connection of your cable. Here's the screenshot showing how output looks without (upper) and with (bottom) GND wire properly connected.
 
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