Foscam NVR FN7104W-B4 firmware dump

[mog404]

Hi all

I'm having some firmware issues with my Foscam FN7104W-B4 NVR. It used to work flawless until it suffered from a power outage.
Now it is stuck in a bootloop.
When connecting to the device with uart i discovered the problem is a corrupt part in memory. It is unable to extract the rootfs.sqfs part of the firmware.
I extracted it to my computer and it is realy corrupt. Unfortunately i am unable to extract this part from the latest firmware update and i can't use this firmare update file as is because it is packet for updating a working system.
Is there anyone out there who can extract the firmware from a working device so i can program it to mine or is anyone able to extract the right part from the new firmware upgrade file?

Any information is much appreciated

Thanks
Mog404

 

[bob432]

Same thing happened to me. Did you manage to find a fix?
I am trying (no luck so far) to get Blue Iris (or another 3rd party app) to replace the Foscam NVR but still use the cameras.
Any other hints would be welcome. Foscam support say nothing can be done, apart from buy a new setup (no thanks).