Hi, I have a sj 19 pro like to put braiins on it and they made me switch to the s17 c55 controlboard, because I had amlogic my asic, for that reason bought that.
I did the unlock and then put the original bitmain firmware, s19 j pro and then it never detected the ip and the 3 lights never came on again.
Actually, I can't understand what you trying to say would you mind using a translator instead and paste it here.
If you have a control board of s19 and it's broken and you buy an s17 control board and you are trying to flash it with s19 firmware there is a big possibility it would brick.
If you have a bad s19 control board you must replace it with a control board which only use for s19, not for the s17 control board.
Take note if you have a fake SD card with fake volume the firmware that you are trying to flash is always corrupted so better use an authentic SD card Samsung or Sandisk.