hello I'm new to the forum. 
I have a problem with my quad, after an accident with iflight chimera 4 it does not rearm again. i checked on cli and it gives me an rpmfilter flag, so i tried to remove the bidiretional dshot, and recheck on cli i ese rescue_sw.

I also tried to connect the bheli_s esc to the bheli configuration program, but I can't connect it, in your opinion what can be the problem?

it indicates there is a problem with the esc or the connection between fc and esc.

do you get three startup beeps while plug in the lipo? do you get two other after a break, overall 5beeps?

One long beep, a series of quick short beeps, then 3 long beeps

I wanted to understand if the esc is recoverable in your opinion or will I have to replace it

Check the wiring harness from ESC to FC to ensure the connectors are good.

Any bent pins? Any pulled wires? Take the harness out and check for continuity using a multimeter.

Ok thanks later I'll try. Yesterday I just tried to disconnect and connect the pins. After I try with the multimeter

Test just the wiring harness at both ends and not the ESC or FC connector pins because they are small enough to short with a multimeter if not careful. For the connector on the ESC and FC just do a visual inspection to ensure the pins are not bent.

I tried with the multimeter but it gives me continuity on all pins so the pins are not the problem?

Do you have any other ideas?

If there connector at the ESC end is good and you are unable to connect to blheli configurator then I guess you have a bad ESC after the crash.

When you connect the lipo exactly how many beeps do you hear?