netgear m5 After using the antenna, my device does not work without it

[fahad_50705]

My device, after using the antenna, does not work without it. I have reset the factory a thousand times and it did not work. I have lost hope. It only works with the antenna.
Model:MR5100
SKU:MR5100-1Z1MES

[fahad_50705]

This is the antenna used

[plemans]

I've seen a few other reports of the internal antenna not turning back on after using an external antenna. 

Maybe @JohnPeng  knows a bit more about the issue