thegenocide/jvs-h411-repair

Instruction for repairing IP Camera JVS-H411 (HZD-600DM)

JVS-H411

Repair instruction for IP Camera JVS-H411 (HZD-600DM)

Steps for reflashing firmware

• Write firmware file IPC_flash_up.bin in root of the sd-card
• Insert sd-card in the camera and reboot (power off/on)
• Wait until camera boot up

If all done successfully you can connect to camera via browser by camera IP.

Telnet connection

For the telnet connection try to use login root and password jvbzd.

Edit appfs partition

• Insert sdcard and restar camera
• Connect via telnet
• Create mount point mkdir /tmp/sdcard
• Mount sdcard mount /dev/mmcblock0p1 /tmp/sdcard
• Check appfs mtd partition cat /proc/mtd
• Create appfs image dd if=/dev/mtdblockN of=/tmp/sdcard/appfs.sqsh
• Unmount sdcard umount /tmp/sdcard
• Copy appfs image to the host system
• Decompress image # unsquashfs appfs.sqsh
• Edit what you want in ./squashfs-root
• Check the squashfs options (compression type, block size) of the original image unsquashfs -s appfs.sqsh
• Create new image # mksquashfs ./squashfs-root ./appfs-new.sqsh -comp TYPE -b SIZE
• Check partition size stat appfs.sqsh (ORIGINAL_SIZE)
• Check new image size stat appfs-new.sqsh (NEW_IMAGE_SIZE)
• Important! Verify that the new image size is less then the original size
• Calculate padding file size echo $((ORIGINAL_SIZE - NEW_IMAGE_SIZE)) (PADDING_SIZE)
• Create padding file dd if=/dev/zero ibs=PADDING_SIZE count=1 | tr "\000" "\377" > padding.bin, where tr used to replace 0x00 to 0xFF
• Merge the new image file with padding file cat padding >> appfs-new.sqsh
• Copy new padded image to sdcard
• Repeat 1-4 steps (mount sdcard)
• Write new appfs image dd if=/tmp/sdcard/appfs-new.sqsh of=/dev/mtdblockN bs=64K
• Unmount sdcard
• Reboot device

Web commands

/cgi-bin/jvsweb.cgi?username=admin&password=admin&cmd=webhelp

Resources

Jovision's firmwares

Update source mirror#1

Update source mirror#2

Update source mirror#3