PTP 450i: Recovery option does not work


I lost management access to PTP450i after I changed some vlan setting. 

I tried to reset it through power cycle but it not working.

Unit is going in recovery mode and I tried "Boot in default mode" it is showing that booting in defult mode and then it is loosing connectivity.

How can i reset this unit?

Appreciate any quick solution

I managed to access radio using switch as I didnt change the Mangement VID.

I appreicate if Cambium investigate why the unit was not got reset using power cycle method.

Thanks all