okay1 0 Posted January 14, 2017 Hi dear I need help I access to my DVR via com port (TTL modul) unfortunately unfortunately I changed bootcmd parameter without backup now I don't know what was that I need to know how to repair bootcmd or change firmware completely via serial port chip hi3520 flash 25q128 16MB help me to restore or repair please Share this post Link to post Share on other sites
okay1 0 Posted January 14, 2017 also I found (sf probe 0;sf read 0x82000000 0x100000 0x300000;bootm 0x82000000) but after show starting kernel ... stop and everything freezing Share this post Link to post Share on other sites
