Your ISP's OLT (Optical Line Terminal) may still reject the ONT based on MAC, LOID, or GPON password. A patched firmware doesn't magically grant network access.
: Always dump your current partitions (mtd1 through mtd6) using tools like TFTP before attempting a flash. brick the device
: The F601 supports dual boot partitions ( kernel0 and kernel1 ). Patched tools allow users to switch between these partitions or clone them for testing.
Patched (unofficial) firmware can introduce vulnerabilities, brick the device, or cause network instability. It may also disable safety certifications.