What conditions cause OP_CODE_SYS_RESET to get sent during DFU?

[Akbar Dhanaliwala]

Hi, I'm testing doing a soft device update (v7.0 to v7.1) over DFU, but I consistently get OP_CODE_SYS_RESET sent to my device after 4 packets(80 bytes), at which point the update fails. I'm using an Android device using nRF Toolbox v1.4 to perform the update. I'm curious what would cause the android device to send that op code. thank you, akbar

[Hung Bui]

Hi Akbar,

Could you let me know which bootloader you are using (SDK version) ? Could you capture a sniffer trace of your DFU process ?

Android app will send that reset command (0x06) if the DFU is not in correct state. I would need to have a look at the trace to know what would be wrong.

[Hung Bui]

Hi Akbar,

I don't have issue updating softdevice with nRFToolbox App (v1.11.4) and the DFU bootloader in SDK v6.1 If you have issue of NRF_ERROR_NO_MEM , could you please check and make sure the hci_mem_pool_internal.h is referred correctly, that RX_BUF_QUEUE_SIZE = 8, TX_BUF_SIZE = 4 and RX_BUF_SIZE = 32. Before we had an issue that the wrong file (the one for UART DFU) is referred instead that resulted in NRF_ERROR_NO_MEM error.