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Hey .. lets not give up .. I think we can still make it . I am looking into this .. Is there any portanl from where i can get rom dump for VTH5221D ? I think if i can reflash it with the dump it will be good to go again , is it ? CH341A USB Mini Programmer...

I made a mistake .. I flashed dm365_ubl_boot_16M.bin.img and now I am stuck . Please help . Is there anything we can do ? DHBOOT# saveenv Saving Environment to SPI Flash... Environment SPI flash not initialized DHBOOT# [SERIAL/DIRECT] CONNECTED TO PORT COM3 (115200-8N1) Checking DDR......OK...

I was able to find serial port with your help but after sucessful flashing I get stuck again...I am using the same Firmware as you advise. after flashing VTH doesnt boot at all, or the screen is completely dark. No display . I have attached putty log file with this post. Please advise. Thank you...

Thanks .. Can you kindly explain which one is serial port and what pins are TX,RX,GRD .. This is VTH 5221D, Dahua Intercom. Thanks

Can anyone kindly explain which one is serial port and what pins are TX,RX,GRD .. This is VTH 5221D, Dahua Intercom. Thanks

Dear All I have bricked by dahua VTH5221D intercom monitor and now its keep restarting after I tried flashing it . Can anyone please help me figure out how to unbrick it ? I am completely new to this . Please advise how can I connect with the device serial port ? what connections I need to...

Can you please share details on where exactly the serial port is on the board ? and how to connect with it .. I have VTH5221D and it keep rebooting after flashing a firmware .. THanks. any help is much appretiated