Raspberry Pi4B Damaged Vs - DFR0494 UPS

Dear all,

I was using a Raspberry Pi4B and a DFR0494 UPS, but I made a mistake and powered the Raspberry through the USB-C port instead of the micro-USB port of the UPS. The result is that now the Raspberry does not boot, but the red Power LED is On, and the green LED is blinking at a very high frequency (not normal…). 

I've tested the UPS with a second Raspberry and in this case, everything works fine. 

Is there something I could do to save the damaged raspberry? 

Thank you in advance for your help.