Hi can any one shy me light here please

I have received my Omnibus f4 Pro V2 yesterday.

Wired all turns on fine.

Checked board before wiring all worked fine Connected to Betaflight fine.

Then I come to Update firmware and board turn it self in DFU mode Did Erase then flash but its stuck on Flashing at full bar.

And don't do nothing

If I disconnect and reconnect I get no response from controller NOTHING COMES ON PC.

IF I press boot it turn in DFU mode but cant flash it it stuck on Flashing again.

Any one had this issue ???

Regards

Sorted

Full chip erase need to be unchecked to work

Regards