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I tried to debrik my dahua NVR5216-4k S2 via tftp and rs232. But I can't find the right firmware it's always boot looping. DDR Training Suc U-Boot 2010.06-svn5972 (Jul 18 2022 - 15:46:51) In: serial Out: serial Err: serial squashfs use gzip SCU: load slave image OK Read backup misc...

I 've a dahua intercom system composed by: a Dahua VTO2000A outdoor unit () a Dahua VTH1510 indoor unit The system function only if I use an old version of Asterisk with chan_sip (Asterisk 11) and only if the VTO calls a group call (one of the member of the group call is the VTH indoor unit)...