nRF Connect for Desktop Bluetooth Low Energy - Keeps on saying "Device must be programmed"

[andreasd]

Hello,

I'm using the nRF Connect for Desktop Bluetooth Low Energy Standalone app version v4.0.4 with a PCA10056 (Rev. 3.0.0).

The DK has "one of those newer" NRF52840 chips on it which switch on APPPROTECT by default.

I guess this is the reason the application says "Device must be programmed" every time (1). However, if I click yes, the popup will simply disappear after a short while, nothing further will happen.

(1) To fix the problem properly, I have to enter "nrfjprog --recover" on the command line, and after the command is finished, I can select the DK in the nRF Connect for Desktop Bluetooth Low Energy app again, and when I confirm the programming, this time it will program the DK properly, and afterwards show the "nRF5x" box in the connection map.

But as soon as I power off or disconnect the DK, the problem begins anew. The Desktop will say again that "the device needs to be programmed".

The OS is Windows 11, 64bit (Build 22621).

[Edvin]

Hello,

I see what you mean. I have not tested any of the new DKs with nRF Connect for Desktop -> Bluetooth LE before. I am currently at a remote office, so I can't physically access the DKs. I will test when I get in the office on Monday, and let you know.

Thank you for reporting, and stay tuned!

Have a nice weekend!

Best regards,

Edvin

[Edvin]

I see the same as you see. I am able to use it using the --recover, but I need to do it after every power cycle, which is a bit unfortunate. I see that this is reported a couple of times by different users. I have asked our internal nRF Connect for Desktop team about this in an internal ticket. 

BR,

Edvin

[ShaolinZhang]

Hi Edvin

        Could you tell me how to use "--recover", I also can not use nRF52840 DK with Bluetooth Low Energy.

[ShaolinZhang]

Hi Edvin:

       I see,I should use nrf-command-line-tools,

[Mike Austin (LPI)]

Any improved resolution to this?  I've just come unstuck with this problem and the above approach does work, but its not ideal :-(