Unbrick vto4202f

[DZLK]

Please help.
How to unbrick vto4202

I found this thread VTO2000A-C Nachfolger: VTO4202F
But can't understand how to get img files from bin firmware.
I try to flash via tftp DH_VTOXXXXD-G_MultiLang_PN_SIP_V4.500.0000000.8.R.210203.bin as sign.bin


dhboot # tftp 0x82000000 sign.bin; flwrite
Hisilicon ETH net controler
find 88e6020 switch !
phy_addr=1, phy_id=3625cc6
eth0 : phy status change : LINK=UP : DUPLEX=FULL : SPEED=100M
Using eth0 device
TFTP from server 192.168.254.254; our IP address is 192.168.1.108; sending through gateway 192.168.1.1
Filename 'sign.bin'.
Default Load Address: 0x82000000,Download to address: 0x82000000
Loading: 100% file size: 28 MiB time: 33.182s speed: 863.3 KiB/s
done
Bytes transferred = 29359535 (1bffdaf hex)
[ERR0002:]The img header be changed!
flwrite - flwrite - write data into FLASH memory


Usage:
flwrite DestAddr
- write data into DestAddr(0xA0000000~0xA4000000)

 

[riogrande75]

Just read this thread, then you should know almost everything about dahua and tftp update.

 

[DZLK]

Just read this thread, then you should know almost everything about dahua and tftp update.

Thanks i found full package firmware DH_VTO4202F-P_MultiLang_PN_SIP_V4.410.0000000.4.R.20200221 with all img files and recover it.