Yes, but it's a bit fiddly, as unlike Hikvision products the 'serial console connection' isn't a handy dandy connector you can just plug in to, but a couple of pads on the PCB that you need to solder wires to.
However - if you can hook up a Serial TTL to USB convertor, the serial console and the Amboot bootloader provide lots of info and fixup capabilities.
The serial console provides info on the problem that's inhibiting the full boot - and Amboot has enough extras to figure out a fixup plan.
From what I've seen - and I'm guessing a bit - the weakness may be a combination of an rw filesystem and a power supply that doesn't provide a conservative enough shutdown / reset / suspend operations trigger when outside optimal conditions for the electronics.
In
@vasycara recent problem, the 'dtb' (Device Tree Block) and flash partition info were erased, cause unknown, so no hardware or flash info was provided to the embedded Linux, so it could not boot.
But Amboot doesn't need that entire detail, and with a slightly sneaky trick (for the Linux techies, dtb and ptb reside in the same flash segment as Amboot environment variables, so doing a '
tftp program' load of a ptb image to the right RAM area, then a dummy 'setenv' to write the flash segment, restored dtb and ptb from a saved version) the device was revived.
It's a pity about the reliability issues, because it's quite an innovative and very functional design, with actually a very good image quality, at a low cost.
I'd like to think that Huisun are carefully studying field problems and figuring out and designing out the root causes to offer an improved product going forward.
The electronics build quality is actually very good, and the firmware is quite sophisticated (I've had a look around inside, and am familiar in some detail with others), more so than the rather pedestrian Hikvision efforts.
