nRf Toolbox dfu service not found

RE: nRf Toolbox dfu service not found

Manhull1989 — Fri, 29 Jul 2016 14:40:25 GMT

yes,thanks Hung Bui, after turn off bluetooth and restart it again, nrf toolbox can find the dfu service.

RE: nRf Toolbox dfu service not found

Hung Bui — Fri, 29 Jul 2016 12:04:21 GMT

@Manhull: it's the nRFConnect on Android you can test with. DFU mode available after you connect and do service discovery.

My suspicion for the issue is that you haven't got the service changed characteristic (IS_SRVC_CHANGED_CHARACT_PRESENT) set to 1 in your application before you flash the bootloader to the device.

Without the IS_SRVC_CHANGED_CHARACT_PRESENT = 1 the iOS/Android device when connected to your device will think that your device won't change and won't do service discovery when connect again.

This may explain why it couldn't find the DFU service when you test. (note that the bootloader automatically change the address, so it doesn't have the issue with this cached attribute table).

My suggestion is to change IS_SRVC_CHANGED_CHARACT_PRESENT to 1 in your application, also try to delete bond (forget this device) on the phone, and restart the phone before you test again.

You can try to use nRFConnect on Android to open and test, it will erase the cached attribute table on the phone every time you connect.

RE: nRf Toolbox dfu service not found

Manhull1989 — Fri, 29 Jul 2016 06:14:03 GMT

I have downloaded it, but I don't know how to use it,no option for DFU

RE: nRf Toolbox dfu service not found

Andrew — Thu, 28 Jul 2016 21:47:57 GMT

I found nRF toolbox to be unreliable with OTA DFU. I have since used nRF Connect (was called nRF Master Control) on Android with a great deal of success. I have not tested this on iPhone, but it would be the first thing to try.