LED1/3/4 always ON is more likely to indicate the current running application inside PSOC 5 LP is the custom FW.
Try to press SW4 to switch to KitProg.
No matter how i press the SW4 for a 2s or 20s , LED is the same staus, LED1,3,4 is on, when press SW4, LED2 flicker on time when
the button is pressed down, if we can use minprog3 to downloader the hex to PSOC5 ,???
It looks your PSoC5 inside KitProg FW is broken. The KitProg FW can be restored under bootloader mode but not bootloaded.
Please try the steps described in the following doc chapter 10.2.1.1 Restore PSoC 5LP Factory Program Using PSoC Programmer
TSK, I fixed it with you way;