I'm looking at a firmware dump from a NAND flash chip and comparing it against another similar firmware dump I have. I am able to open one of them to see the root folder structure, however the other I cannot.
The one I cannot has these "random" 40 bytes of 0xFF strung in, which I think isn't allowing me to extract the filesystem from. I believe the root folder structure should be similar, if not the same as the other firmware dump I CAN open.
Is this a case of non-standard compression? How should I go about opening up these file systems?
I can upload the firmware, but they are 128MB each so kind of large files.
Here's a beyond compare between the two. The unknown on the left: https://imgur.com/dfEtGEI