Unable to BLE-DFU with SD 3.0.0 and SDK 12.1.0

[naveenj]

I am trying to run the example for secure bootloader debug present in SDK 12.1.0 and SD S132 v3.0.0 on NRF52832 with ARM GCC

The aforementioned example "nRF5_SDK_12.1.0_0d23e2a/examples/dfu/bootloader_secure/pca10040"

When I try to DFU from nRF Connect Android app, I can see "DfuTarg" of the device but unable to connect to it.

When I read the registers using "nrfjprog", I saw the PC at 78xxxx.

I haven't made any modifications to the example, except for replacing the dfu_public_key.c file. I saw the same problem with SDK 12.2.0.

How can I fix this?

[bjorn-spockeli]

Hi Naveenj, 

can you post the log from the Android nRF Connect app? Even better would be a sniffer trace captured with nRF Sniffe.

Best regards

Bjørn