XMOS-based Asynchronous USB to I2S interface

It seems that I permanently bricked my board by flashing it to WaveIO_v6.F2 firmware. (before flashing I run dfucons revertfactory command)
After that it is not recognized by TUSBAudioDfu.exe nor as linux usb device.
The same procedure worked many time before...

Is there a way to resurrect it by some other method? i.e. by short-circuit two pins on the xmos chip 😬