[Q] Custom binary block by reactivation lock topic

Hello everybody,
I have a Galaxy Note 3 Lte (SM-N9005) . I have already installed many custom recovery and custom roms.But this time I am unable to install custom roms
due to Reactivation lock is always on in bootloader mode.Under the Setting>General>Security>Reactivation lock ,it is untick (off position).But when I try to root or install custom recovery it not allow me to install, reactivation lock is always ON as per attached photos and "Custom binary block by reactivation lock" it says. But I can install official roms.

Kindly help me how to solve this problem so that I can root and install custom roms as usual.

Thanking you for kind help.

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