LP-CC1311P3: FW FLASH failure after disabling BOOTLOADER

Part Number: LP-CC1311P3
Other Parts Discussed in Thread: CC1311P3, SYSCONFIG, UNIFLASH

Tool/software:

I am working with CC1311P3 LaunchPad. After flashing a new firmware with the SysConfig shown below, I am no longer able to connect with CCS or UniFlash.

Bootloader: disabled

Bootloader Backdoor: disabled

Debug Access (CPU DAP, TEST TAP, PBIST, AON): all unchecked

Error from CCS/UniFlash:

IcePick_C: Error connecting to the target: (Error -241 @ 0x0)

A router subpath could not be accessed. A security error has probably occurred.

Is there any recovery method in this situation?

For development, what is the recommended safe CCFG config (to avoid bricking)? 

Thanks,

Theiv B