BLE - WIFI commissioning

[gautam_joshi]

i am using ubuntu 20.04 as a matter contoller and nrf52840 as matter devce and i am doing BLE - WIFi commssionig and i get BLE timeout error how to solve it.

[gautam_joshi]

hello,

sorry for late reply,

actually we have switch to BLE-thread so we are not longer work on BLE-wifi,in BLE-thread i got an error when make OTBR.

this error i got when i try to upload hex code in nrf52840 dongle and i am using 3.0.8 version and i have akso try this on latest version.

[Hung Bui]

Hi Gautam, 
Could you tell me which exact firmware you are flashing ot the nRF52840 dongle ? 
As far as I know it's normal that after DFU update the programmer can not communicate with the dongle (until you put the dongle into DFU mode again). 

[gautam_joshi]

7652.ot-rcp.hex

actually i am flashing this code which give me an error.

[gautam_joshi]

this file i generate from this link https://openthread.io/codelabs/openthread-hardware#3

[Hung Bui]

Hi Gautam, 
I'm not so sure the firmware is made for the dongle. It's the nRF52840 Dev Kit you should flash it on , not the dongle. 
On the dongle there is a bootloader and that require the application location to be adjusted. (Unless you have soldered the SWD port to erase the bootloader and flash directly)
Could you please try testing on a Dev Kit instead ?