Please do a hard reset for the device.I suppose you are using a custom board.
Please check whether the custom board hardware meets the power supply (page#03) and other suggestion as mentioned in hardware design guide:
My custom board meets all hardware design guidelines.
the board already been used in many of our products.
but this time this problem came in some PCB's where the controller is not programming. same controller when i insert in working PCB then it works.
We made custom controller PCB which has male header which is used to attach to any of our product PCB's.
I can understand from your reply, that there is no issue with MiniProg3's functionality.
If the schematic and layout of the bad PCBs is same as working PCBs, then the only other suspect remains is the components placed.
Please check components placed in the the PCBs with the issue is correct or not.
The schematic and layout of both PCBs are same both are of same project same components and same placement.
i already checked the Components all are ok.
I hope you have checked the specifications of components placed on PCBs with issue.
Please try replacing the PSoC5LP chip on non working PCBs from working PCBs.