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JLink not recognized after setting --rbp ALL

VarunR

I'm using the nRF52 Dev board and set the --rbp ALL option while using nrfjprog. It worked fine, and I am able to do OTA updates as I was testing the bootloader example. But the jlink is no longer recognized. I cannot undo the readback protection as I can no longer recognize the jlink on the board. I get the following error in keil: ***JLink Error: Communication timed out: Requested 20 bytes, received 0 bytes ! Could not transfer JTAG data. DAP error while reading DP-Ctrl-Stat register. Error: Flash Download failed - Target DLL has been cancelled

And I can't use any of the methods given here to disable the RBP: devzone.nordicsemi.com/.../

Has anyone seen this problem before? Any help would be appreciated, thanks!

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    endnode, thank you for you reply. I um unable to debug the target (but I see that it operates normally through the uart output). Also I am unable to connect under reset. The other boards with exact same configuration debugs normally. Therefore the symptoms looks very similar to me.

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    endnode, thank you for you reply. I um unable to debug the target (but I see that it operates normally through the uart output). Also I am unable to connect under reset. The other boards with exact same configuration debugs normally. Therefore the symptoms looks very similar to me.

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