nrfjprog read back protection is working??

[sosse]

Hello, after I program bootloader, sd, application, I did the following command to do read back protection,

nrfjprog --rbp ALL -f NRF51

But, even though I still can get data by using nrfjprog --memrd xxxxx. Can anybody tell me how can I protect to somebody to read my chip?? Thank you.

[endnode]

UICR register is reloaded during nRF5x reset, have you powered the chip off and on (or issued reset command)?

[endnode]

This is output of the script on my Win7 machine:

NRF5_CHIP_FAMILY = NRF51
SOFTDEVICE_NAME  = s130_nrf51_2.0.1_softdevice.hex
APP_NAME         = my-ble-app.hex
Parsing input hex files.
Merging files.
Storing merged file.
Recovering device. This operation might take 30s.
Erasing user code and UICR flash areas.
0x0000300C: FFFFFFFF                              |....|
Parsing hex file.
Erasing code and UICR flash areas.
Applying system reset.
Checking that the area to write is not protected.
Programing device.
Verifying programming.
Verified OK.
0x0000300C: FFFF0087                              |....|
Protected the device against read and debug. --pinreset might no longer be
available.
0x0000300C: 00000000                              |....|
Applying pin reset.
0x0000300C: 00000000                              |....|