besbes_bechir 0 Posted July 29, 2014 Hello, I upgrade Dahua 0804LF-AS after i upgrade it got black screen . how can i upload it over RS232 or JTAG it if possible I dont have in the DVR any port of RS232 as i seach on net it has 4pinout for RS232 but need for interface to upload it Share this post Link to post Share on other sites
iTuneDVR 2 Posted July 29, 2014 Hello, I upgrade Dahua 0804LF-AS after i upgrade it got black screen . how can i upload it over RS232 or JTAG it if possible I dont have in the DVR any port of RS232 as i seach on net it has 4pinout for RS232 but need for interface to upload it You need TTL-RS232 adapter, null modem cable, PC with real COM port, hyperterminal, TFTP server and knowledge On the Internet a lot of instructions on how to restore Dahua TFTP! Share this post Link to post Share on other sites
