SLC500 PLC 5/03 Fault

Hello Everyone.

I was downloading a project to my PLC503 and the progress corrupted during the download.
I got a flashing fault, I switched to program then run it doesn't solve the problem. I connected the plc to RSlinx using RS232 cable ( non USB) 1747-CP3 cable, of course I added the driver as RS232 DF1 and auto configuration went successful, now the PLC is showing as Default / Faulted.

I reseted the PLC's memory to factory default by removing the battery and short out the VBB with GND for 60 seconds, and its still DEFAULT/FAULTED

RSlogix doesn't recognize the PLC as well so no way to download a new project.

My question is how to clear that fault ?

Would be very appreciate if you help me out

Thank you