IOS nrfConnect issue with DFU

[vivek.spraxa]

I am using nrf connect app on ios , the device is getitng on device mode but it is not showing DFU button on it , but it is working when using android app of it

And when doing dfu using ios liberary on react rative app, we are getting this error

DFU state: CONNECTING
98d3db5e-35d2-4003-9…-fc749e7a9a6c:92442 DFU state: DFU_FAILED
98d3db5e-35d2-4003-9…5-fc749e7a9a6c:5221 Error: DFU Service not found
at createErrorFromErrorData (98d3db5e-35d2-4003-9…5-fc749e7a9a6c:4204)
at 98d3db5e-35d2-4003-9…5-fc749e7a9a6c:4156
at MessageQueue.__invokeCallback (98d3db5e-35d2-4003-9…5-fc749e7a9a6c:4702)
at 98d3db5e-35d2-4003-9…5-fc749e7a9a6c:4433
at MessageQueue.__guard (98d3db5e-35d2-4003-9…5-fc749e7a9a6c:4606)
at MessageQueue.invokeCallbackAndReturnFlushedQueue (98d3db5e-35d2-4003-9…5-fc749e7a9a6c:4432)
at debuggerWorker.js:80

[bjorn-spockeli]

HI Vivek, 

the UUID of the Service shown in the nRF Connect app does not match the UUID of the Buttonless DFU Service, which is 0xFE59. 

Which SDK example have you flashed to your nRF device? Which SDK version are you using? Is this the nRF52 or the nRF51 series? 

The Buttonless DFU Service should have two characteristics with the following UUIDs.

Characteristic name	Required properties	Optional properties	UUID	16-bit
DFU Control Point	Write, Notify		0x8EC90001-F315-4F60-9FB8-838830DAEA50	0x0001
DFU Packet	WriteWithoutResponse, Notify		0x8EC90002-F315-4F60-9FB8-838830DAEA50	0x0002

It could be that your iOS device has cached the GATT table of the previous application on the nRF device. Can you try to turn off and on again the Bluetooth adaptor on the iOS device?

Best regards

Bjørn

[vivek.spraxa]

And here are the screenshot from android nrf connect

[bjorn-spockeli]

Which SDK version are you using to built the firmware on the nRF device? Which version of the nRF COnnect app are you using? Have you tried erasing the device and reporgramming it as well as turning the iOS device off and on again? 

I had no issues when testing with the SDK v15.3.0 example and a iOS device here.

[vivek.spraxa]

We are not using sdk , we have soft device version s132_nrf52_5.0.0 , firmware version 4.1.10, i am using the latest version available on app store and ios version 12.3.1 iphone 6

[bjorn-spockeli]

But you must have an application firmware that adds the Buttonless DFU service to the GATT table of the SoftDevice using the SoftDevice API? Is it possible to run the application on a nRF52 DK? If yes, could you attach the compiled hex file to the question so that i can test it here?

[vivek.spraxa]

1_1.99.3.hex

1_1.99.4.hex

Here the attached hex files for it