Use mksquashfs to rebuild the filesystem:
mksquashfs rootfs/ new-rootfs.bin -comp xz -b 256k
Are you experiencing any of these issues? zte f671y firmware update repack
A repacked firmware can resolve these issues by reverting the device to a universal ZTE firmware or a "clean" carrier-neutral build. Use mksquashfs to rebuild the filesystem: mksquashfs rootfs/
You have three methods to flash the repack: Are you experiencing any of these issues
You will find a SquashFS partition (e.g., 80.squashfs). Extract it:
unsquashfs 80.squashfs
cd squashfs-root
Now you have full access to the router’s file system—including web interface files, startup scripts, and busybox binaries.