Zigbee reset not working on C-7

I have migrated from C-7 to C-8 hub and trying to reset the old C-7 hub.
Successfully trigger reset under Zwave Details in Settings and removed all Zwave devices.
However, after triggering the reset under Zigbee Details in Settings, all zigbee devices remained on the zigbee list.

Any clue how to reset and remove all zigbee devices on the C-7 hub?

The radio is reset but the database is seperate, you need to delete the zigbee device entries